Voice Android SDK Changelog

Welcome to the Programmable Voice Android SDK

The Twilio Programmable Voice SDKs allow you to add voice-over-IP (VoIP) calling into your native Android applications. See Android Getting Started Guide to begin using the SDK.

6.3.0

Sept 5th, 2023

• Programmable Voice Android SDK 6.3.0[Maven Central], [docs] MD5 Checksum : a2e5f997dbf3c6b0e6b1a169e2cbf79d

API Updates

• Provides a LoggerInterface interface. This interface contains a log method that is invoked with a LogParameters object every time a log message becomes available. The LogParameters object contains all the information relevant to the log message being delivered.
• The Android SDK internally implements the LoggerInterface to provide default logging capabilities to stdout using android.util.Log.
• Provides a Voice.SetLogger(LoggerInterface) method that allows setting a custom logger that conforms to LoggerInterface to which log messages will be delivered.
• Provides a Voice.GetLogger() method that returns the logger that was previously set with setLogger. If no custom logger was set, this method returns the default logger currently used by the SDK.
• Users can send their messages to be logged by the SDK using Voice.GetLogger().log(LogParameters). This logs the message using the SDK's default logger.
• Users can also implement custom loggers that conform to LoggerInterface to customize the logging mechanism, for eg., logging to a file, sending the logs to a server, etc.
• The existing Logger class is deprecated and will be removed in the next major version release.

Size Report

6.2.1

June 23rd, 2023

• Programmable Voice Android SDK 6.2.1[Maven Central], [docs] MD5 Checksum : 8875d823f55cad837f972a700696be8b

Bug Fixes

Fixed a bug where the incoming call invite could only ring up to 3 minutes instead of the maximum 10 minutes call timeout.

Library size report

6.2.0

June 12th, 2023

• Programmable Voice Android SDK 6.2.0[Maven Central], [docs] MD5 Checksum : 5fd4d8b18a8cbfacc56c16a699080e8a

Bug Fixes & Updates

• Upgraded to use WebRTC-105.
• AudioOption, typing_detection is now deprecated, no longer supported by WebRTC.
• Fixed a crash when using an external audio device due to JAVA stack frame not being constructed.
• Fixed a crash due to file handle exhaustion.
• Fixed memory leaks regarding WebRTC shutdown & lingering Media Factory references.

Library size report

6.1.2

July 11th, 2022

• Programmable Voice Android SDK 6.1.2[Maven Central], [docs] MD5 Checksum : 1e9ce7d72f561c46711bbcdfa1df2873

API updates

• New edge umatilla is now supported. Set the Voice.setEdge(...) property before connecting or accepting the call.

Things to Note

• Restrictive networks may fail unless ICE servers are provided via ConnectOptions.Builder.iceOptions(...) or AcceptOptions.Builder.iceOptions(...). ICE servers can be obtained from Twilio Network Traversal Service.

Library size report

6.1.1

May 26th, 2022

• Programmable Voice Android SDK 6.1.1[Maven Central], [docs] MD5 Checksum : 355865e5f9e1f82be63af8225c4f0bfc

Bug Fixes

• Fixed a crash when the home region specifier (twr) in the access token is null.

Things to Note

• Restrictive networks may fail unless ICE servers are provided via ConnectOptions.Builder.iceOptions(...) or AcceptOptions.Builder.iceOptions(...). ICE servers can be obtained from Twilio Network Traversal Service.

Library size report

6.1.0

May 9th, 2022

• Programmable Voice Android SDK 6.1.0[Maven Central], [docs] MD5 Checksum : 164b77f552b7a2a9c8c40ace9b30077f

API updates

• The Voice Android SDK now supports Twilio Regional by providing the home region specifier in the access token header when calling the Voice.register() method, the Voice.unregister() method, or the Voice.connect() method.

Existing customers can now migrate their Voice use-cases to data centers in Ireland or Australia to establish data residency within the region. In addition, new customers may now select Ireland or Australia as their region of choice for Voice related use cases. There is no additional cost to use the new data centers in Ireland or Australia. To learn more about Regional Voice, check out our blog post or head over to our developer docs to get started.

Below is an example of specifying home region in the access token using the Twilio Node.js helper library:

const accessToken = new twilio.jwt.AccessToken(
    credentials.accountSid,
    credentials.apiKeySid,
    credentials.apiKeySecret, {
      identity,
      ttl,
      region: 'au1',
    },
  );

The decoded header of your access token should look like this:

{
  "alg": "HS256",
  "typ": "JWT",
  "cty": "twilio-fpa;v=1",
  "twr": "au1"
}

Maintenance

• The SDK compileSDKVersion and targetSDKVersion were updated to 31.
• Updated getStats(...) API doc.

Bug Fixes

• Fixed IceCandidatePairStats javadoc. Added responsesSent attribute to IceCandidatePairStats.

Things to Note

• Restrictive networks may fail unless ICE servers are provided via ConnectOptions.Builder.iceOptions(...) or AcceptOptions.Builder.iceOptions(...). ICE servers can be obtained from Twilio Network Traversal Service.

Library size report

6.0.7

February 8th, 2022

• Programmable Voice Android SDK 6.0.7[Maven Central], [docs] MD5 Checksum : ddb5b1530276c8a5ceb2fc773a5e6dc7

New Features

• Upgraded SDK to build with Java 11.
• Updated the SDK to Android Gradle Plugin 7.0.4.

Things to Note

• Restrictive networks may fail unless ICE servers are provided via ConnectOptions.Builder.iceOptions(...) or AcceptOptions.Builder.iceOptions(...). ICE servers can be obtained from Twilio Network Traversal Service.

Library size report

6.0.2

November 19, 2021

• Programmable Voice Android SDK 6.0.2[Maven Central], [docs] MD5 Checksum : 9d3914d5b7cb05b9ded42611db408cd9

Enhancements

• Updated the SDK to Android Gradle Plugin 4.2.2.

Things to Note

• Restrictive networks may fail unless ICE servers are provided via ConnectOptions.Builder.iceOptions(...) or AcceptOptions.Builder.iceOptions(...). ICE servers can be obtained from Twilio Network Traversal Service.

Library size report

6.0.1

November 5, 2021

• Programmable Voice Android SDK 6.0.1[Maven Central], [docs] MD5 Checksum : 8be66d2ff2da31b89a5d904525a7b0a5

Maintenance

• Upgraded the SDK to use AndroidX.

Things to Note

• Restrictive networks may fail unless ICE servers are provided via ConnectOptions.Builder.iceOptions(...) or AcceptOptions.Builder.iceOptions(...). ICE servers can be obtained from Twilio Network Traversal Service.

Library size report

6.0.0

November 2, 2021

• Programmable Voice Android SDK 6.0.0[Maven Central], [docs] MD5 Checksum : c6150be451e4ad4948f2b5d2a7212ff0

API Changes

• The minimum Android SDK version has been increased from 16 to 21.

Enhancements

• The voice SDK now validates full remote domain names while setting up the TLS connection.

Things to Note

• Restrictive networks may fail unless ICE servers are provided via ConnectOptions.Builder.iceOptions(...) or AcceptOptions.Builder.iceOptions(...). ICE servers can be obtained from Twilio Network Traversal Service.

Library size report

5.8.0

May 24, 2021

• Programmable Voice Android SDK 5.8.0[Maven Central], [docs] MD5 Checksum : dff5963249ff07f1378cd322fd50b50b

Enhancements

• This release is based on Chromium WebRTC 88.
• The SDK uses Unified Plan SDP semantics instead of Plan-B.

Things to Note

• Restrictive networks may fail unless ICE servers are provided via ConnectOptions.Builder.iceOptions(...) or AcceptOptions.Builder.iceOptions(...). ICE servers can be obtained from Twilio Network Traversal Service.
• Occasional native crash in AsyncTask of registration/unregistration and event publishing. The crash has only been observed on API 18 devices and results from a thread safety bug in Android. Similar crashes have been reported in the popular networking library OkHttp #1520 #1338. If this bug is impacting your applications, please open an issue on our quickstart and we will investigate potential fixes.

Library size report

5.7.2

March 29, 2021

• Programmable Voice Android SDK 5.7.2[Maven Central], [docs] MD5 Checksum : cac4a963814637b23e2d1ffadda30036

Enhancements

• Voice Android artifacts are now published to MavenCentral instead of Bintray.

  • Ensure to include mavenCentral() listed in your project's buildscript repositories section:

  buildscript { repositories { mavenCentral() ... } }

• Voice Android SDK now publishes the checksum in the release notes.

Bug Fixes

• Fixed a crash when onNetworkChanged was called during the teardown process.

Things to Note

• Restrictive networks may fail unless ICE servers are provided via ConnectOptions.Builder.iceOptions(...) or AcceptOptions.Builder.iceOptions(...). ICE servers can be obtained from Twilio Network Traversal Service.
• Occasional native crash in AsyncTask of registration/unregistration and event publishing. The crash has only been observed on API 18 devices and results from a thread safety bug in Android. Similar crashes have been reported in the popular networking library OkHttp #1520 #1338. If this bug is impacting your applications, please open an issue on our quickstart and we will investigate potential fixes.

Library size report

5.6.3

March 11, 2021

• Programmable Voice Android SDK 5.6.3 [bintray], [docs]

Bug Fixes

• Fixed a potential bug in the core module where the Logger could be accessed after being destroyed by another thread.

Library size report

Things to note

• Restrictive networks may fail unless ICE servers are provided via ConnectOptions.Builder.iceOptions(...) or AcceptOptions.Builder.iceOptions(...). ICE servers can be obtained from Twilio Network Traversal Service.
• Occasional native crash in AsyncTask of registration/unregistration and event publishing. The crash has only been observed on API 18 devices and results from a thread safety bug in Android. Similar crashes have been reported in the popular networking library OkHttp #1520 #1338. If this bug is impacting your applications, please open an issue on our quickstart and we will investigate potential fixes.

5.6.2

January 26, 2021

• Programmable Voice Android SDK 5.6.2 [bintray], [docs]

Enhancements

• Updated the SDK to Android Gradle Plugin to 4.1.1.

Library size report

Things to note

• Restrictive networks may fail unless ICE servers are provided via ConnectOptions.Builder.iceOptions(...) or AcceptOptions.Builder.iceOptions(...). ICE servers can be obtained from Twilio Network Traversal Service.
• Occasional native crash in AsyncTask of registration/unregistration and event publishing. The crash has only been observed on API 18 devices and results from a thread safety bug in Android. Similar crashes have been reported in the popular networking library OkHttp #1520 #1338. If this bug is impacting your applications, please open an issue on our quickstart and we will investigate potential fixes.

5.6.1

January 5, 2021

• Programmable Voice Android SDK 5.6.1 [bintray], [docs]

Bug fixes

• Fixed a bug where caller did not receive the onDisconnected callback with error when the callee hung up.
• Fixed a bug where callee did not receive the onCancelledCallInvite callback with error when signaling connection error happened.

Enhancements

• Private IP addresses are masked in Release mode for the SDK logs and the ice-candidate Insights event payload.
• Private IP addresses will not be masked in Debug mode. The selected-ice-candidate-pair event will contain private IP address of the local active ICE candidate for debugging purpose in both Release and Debug modes.
• Stop publishing Voice Insights event with invalid access token.

Library size report

Things to note

• Restrictive networks may fail unless ICE servers are provided via ConnectOptions.Builder.iceOptions(...) or AcceptOptions.Builder.iceOptions(...). ICE servers can be obtained from Twilio Network Traversal Service.
• Occasional native crash in AsyncTask of registration/unregistration and event publishing. The crash has only been observed on API 18 devices and results from a thread safety bug in Android. Similar crashes have been reported in the popular networking library OkHttp #1520 #1338. If this bug is impacting your applications, please open an issue on our quickstart and we will investigate potential fixes.

5.6.0

September 29th, 2020

• Programmable Voice Android SDK 5.6.0 [bintray], [docs]

Maintenance

• The SDK compileSDKVersion and targetSDKVersion were updated to 30 from 28. No changes are required to migrate to this version in an existing application.

Library size report

Things to note

• Restrictive networks may fail unless ICE servers are provided via ConnectOptions.Builder.iceOptions(...) or AcceptOptions.Builder.iceOptions(...). ICE servers can be obtained from Twilio Network Traversal Service.
• Occasional native crash in AsyncTask of registration/unregistration and event publishing. The crash has only been observed on API 18 devices and results from a thread safety bug in Android. Similar crashes have been reported in the popular networking library OkHttp #1520 #1338. If this bug is impacting your applications, please open an issue on our quickstart and we will investigate potential fixes.

5.5.0

September 16, 2020

• Programmable Voice Android SDK 5.5.0 [bintray], [docs]

Enhancements

• The Voice Android SDK uses Chromium WebRTC 83.
• The Voice Android SDK is built with NDK r20b.
• PeerConnection state is now reported to Insights.
• mos calculation algorithm has been updated to make it monotonically decreasing with increasing jitter and packets-lost-fraction values over a range of rtt values. The final mos should always be in the range [1.0, 4.6].

• A new Insights event selected-ice-candidate-pair is reported with the active local ICE candidate and remote ICE candidate.

• Defined new error code

Maintenance

• A security patch has been applied to prevent host candidate DNS attacks. See [https://bugs.chromium.org/p/webrtc/issues/detail?id=11597] for details.

Bug fixes

• Fixed a crash bug when processing empty stats reports or stats reports without remote audio tracks.

SDK size update

The table below highlights the updated App Size Impact.

Library size report

Things to note

• Restrictive networks may fail unless ICE servers are provided via ConnectOptions.Builder.iceOptions(...) or AcceptOptions.Builder.iceOptions(...). ICE servers can be obtained from Twilio Network Traversal Service.
• Occasional native crash in AsyncTask of registration/unregistration and event publishing. The crash has only been observed on API 18 devices and results from a thread safety bug in Android. Similar crashes have been reported in the popular networking library OkHttp #1520 #1338. If this bug is impacting your applications, please open an issue on our quickstart and we will investigate potential fixes.

5.4.2

September 14, 2020

• Programmable Voice Android SDK 5.4.1 [bintray], [docs]

Bug fixes

• Fixed a crash bug when processing empty stats reports or stats reports without remote audio tracks.

Library size report

Things to note

• Restrictive networks may fail unless ICE servers are provided via ConnectOptions.Builder.iceOptions(...) or AcceptOptions.Builder.iceOptions(...). ICE servers can be obtained from Twilio Network Traversal Service.
• Occasional native crash in AsyncTask of registration/unregistration and event publishing. The crash has only been observed on API 18 devices and results from a thread safety bug in Android. Similar crashes have been reported in the popular networking library OkHttp #1520 #1338. If this bug is impacting your applications, please open an issue on our quickstart and we will investigate potential fixes.

5.4.1

September 1, 2020

• Programmable Voice Android SDK 5.4.1 [bintray], [docs]

Bug fixes

• Fixed a bug when attempting to execute work on the worker thread from a custom audio device.

Maintenance

• Upgraded to Android Gradle Plugin 4.0.0 and Gradle 6.1.1
• Starting with Voice Android SDK 5.4.1, the SDK is no longer binary compatible with applications that target Java 7. In order to use this and future releases, developers must upgrade their applications to target Java 8. Follow the snippet below for reference:

android {
    compileOptions {
        sourceCompatibility 1.8
        targetCompatibility 1.8
    }
}

Library size report

Things to note

• Restrictive networks may fail unless ICE servers are provided via ConnectOptions.Builder.iceOptions(...) or AcceptOptions.Builder.iceOptions(...). ICE servers can be obtained from Twilio Network Traversal Service.
• Occasional native crash in AsyncTask of registration/unregistration and event publishing. The crash has only been observed on API 18 devices and results from a thread safety bug in Android. Similar crashes have been reported in the popular networking library OkHttp #1520 #1338. If this bug is impacting your applications, please open an issue on our quickstart and we will investigate potential fixes.

5.4.0

July 9, 2020

• Programmable Voice Android SDK 5.4.0 [bintray], [docs]

API change

• A CallerInfo object is introduced to represent information about the caller. Currently, this information is limited to SHAKEN/STIR status of incoming PSTN Calls, but may later be expanded to include CNAM, and other endpoint types. isVerified attribute represents whether or not the caller's phone number has been verified by Twilio using SHAKEN/STIR validation. The value of this attribute is true if the caller has been validated at 'A' level, false if the caller has been verified at any lower level or has failed validation. If SHAKEN/STIR information is unavailable for the caller or stir status value is null, the value of this attribute will be null.

• CallInvite class includes getCallerInfo(..) method that returns the CallerInfo of the caller.

For details on how Twilio uses SHAKEN/STIR to make trusted calls and protect against unlawful spoofing, please visit https://www.twilio.com/docs/voice/trusted-calling-using-shakenstir.

Bug fixes

• Fixed crash bugs during teardown of a Call.

Library size report

Things to note

• Restrictive networks may fail unless ICE servers are provided via ConnectOptions.Builder.iceOptions(...) or AcceptOptions.Builder.iceOptions(...). ICE servers can be obtained from Twilio Network Traversal Service.
• Occasional native crash in AsyncTask of registration/unregistration and event publishing. The crash has only been observed on API 18 devices and results from a thread safety bug in Android. Similar crashes have been reported in the popular networking library OkHttp #1520 #1338. If this bug is impacting your applications, please open an issue on our quickstart and we will investigate potential fixes.

5.3.1

June 23, 2020

• Programmable Voice Android SDK 5.3.1 [bintray], [docs]

Bug fixes

• Fixed a bug in Voice.setRegion(..) API that disallowed to use non default values.

Library size report

Things to note

• Restrictive networks may fail unless ICE servers are provided via ConnectOptions.Builder.iceOptions(...) or AcceptOptions.Builder.iceOptions(...). ICE servers can be obtained from Twilio Network Traversal Service.
• Occasional native crash in AsyncTask of registration/unregistration and event publishing. The crash has only been observed on API 18 devices and results from a thread safety bug in Android. Similar crashes have been reported in the popular networking library OkHttp #1520 #1338. If this bug is impacting your applications, please open an issue on our quickstart and we will investigate potential fixes.

5.3.0

June 3, 2020

• Programmable Voice Android SDK 5.3.0 [bintray], [docs]

API changes

• A new Call.Listener callback onCallQualityWarningsChanged() is introduced.

void onCallQualityWarningsChanged(Call call,
                                  Set<CallQualityWarning> currentWarnings,
                                  Set<CallQualityWarning> previousWarnings);

The Set that contain the warnings are consisted of enum with values of the newly introduced CallQualityWarning

public enum CallQualityWarning {
    WARN_HIGH_RTT("high-rtt"),
    WARN_HIGH_JITTER("high-jitter"),
    WARN_HIGH_PACKET_LOSS("high-packet-loss"),
    WARN_LOW_MOS("low-mos"),
    WARN_CONSTANT_AUDIO_IN_LEVEL("constant-audio-input-level"),
}

The trigger conditions for the warnings defined in the enumeration are defined as follows:

• WARN_HIGH_RTT - Round Trip Time (RTT) > 400 ms for 3 out of last 5 samples.
• WARN_HIGH_JITTER - Jitter > 30 ms for 3 out of last 5 samples.
• WARN_HIGH_PACKET_LOSS - Raised when average packet loss > 3% in last 7 samples. Cleared when average packet loss <= 1% in last 7 samples.
• WARN_LOW_MOS - Mean Opinion Score (MOS) < 3.5 for 3 out of last 5 samples.

• WARN_CONSTANT_AUDIO_IN_LEVEL - Raised when the standard deviation of audio input levels for last 10 samples is less than or equals 1% of the maximum possible audio input level (32767) i.e. 327.67 and the call is not in the muted state and the call is not on hold. Cleared when the standard deviation of audio input levels for last 10 samples is greater than 3% of the maximum possible audio input level.

• A new method getCallQualityWarnings() is added to Call to retrieve the present set of call quality related warnings.

• This release also adds the Mean Opinion Score (MOS) measurement mos to RemoteAudioTrackStats. Use Call.getStats() API during a call to retrieve the score. The mos is computed once per second. Since the MOS is calculated from network performance measurements, it can be used to indicate the current network condition to the user to provide better usability. See API Docs for more information.

Example:

call.getStats(new StatsListener() {
    @Override
    public void onStats(@NonNull List<StatsReport> statsReports) {
        for (StatsReport statsReport : statsReports) {
            List<RemoteAudioTrackStats> remoteAudioStatsList = statsReport.getRemoteAudioTrackStats();
            for (RemoteAudioTrackStats remoteAudioStats : remoteAudioStatsList) {
                float mos = remoteAudioStats.mos;
            }
        }
    }
});

• This release includes support for the expansion of Twilio’s Global Infrastructure via Edge Locations which allows customers to control their connectivity into and out of Twilio’s platform. The Voice Android SDK uses these Edges to connect to Twilio’s infrastructure via the new property Voice.edge. This new property supersedes the now deprecated Voice.region. See the new Edge names and how they map to the old region names.

Here is an example:

// Connect using global low latency
Voice.setEdge("roaming")

Below are the new methods signatures introduced in Voice class.

@NonNull public static String getEdge();
public static void setEdge(@NonNull String edge)

The following APIs have been deprecated in favor of the new methods.

@NonNull public static String getRegion();
public static void setRegion(@NonNull String region)

• Added a boolean property enableIceGatheringOnAnyAddressPorts in CallOptions that allows gathering of ICE candidates from "any address" ports. This allows applications to work in certain VPN environments.

Reference the following code snippet to enable or disable this feature. Note, enableIceGatheringOnAnyAddressPorts is disabled by default.

Configure enableIceGatheringOnAnyAddressPorts with ConnectOptions

ConnectOptions connectOptions = new ConnectOptions.Builder(accessToken)
        .enableIceGatheringOnAnyAddressPorts(iceGatheringOnAnyAddressPorts)
        .build();
Voice.connect(context, connectOptions, callListener);

Configure enableIceGatheringOnAnyAddressPorts with AcceptOptions

AcceptOptions acceptOptions = new AcceptOptions.Builder()
        .enableIceGatheringOnAnyAddressPorts(iceGatheringOnAnyAddressPorts)
        .build();
callInvite.accept(context, acceptOptions, callListener); 

• By default ICE gathering is done on all interfaces except some VPN type interfaces. This makes it impossible to connect to Twilio in networks that require the use of VPN. In this release, the new boolean property enableIceGatheringOnAnyAddressPorts in CallOptions allows the gathering of ICE candidates from all available interfaces. This should be used in those networks where the default does not work. See AcceptOptions.Builder.enableIceGatheringOnAnyAddressPorts or ConnectOptions.Builder.enableIceGatheringOnAnyAddressPorts for more information.

Library size report

Things to note

• Voice.setRegion(..) API disallows to use non default values.
• Restrictive networks may fail unless ICE servers are provided via ConnectOptions.Builder.iceOptions(...) or AcceptOptions.Builder.iceOptions(...). ICE servers can be obtained from Twilio Network Traversal Service.
• Occasional native crash in AsyncTask of registration/unregistration and event publishing. The crash has only been observed on API 18 devices and results from a thread safety bug in Android. Similar crashes have been reported in the popular networking library OkHttp #1520 #1338. If this bug is impacting your applications, please open an issue on our quickstart and we will investigate potential fixes.

5.2.0

April 27, 2020

• Programmable Voice Android SDK 5.2.0 [bintray], [docs]

AudioDevice API

The AudioDevice API is an advanced API that can be used to create innovative and sophisticated in-app audio capabilities. For example, enable pre-recorded messages to be played in-call, or apply noise reduction algorithms before playing out the received audio.

An AudioDevice is a logical device that is used to capture and render audio. The captured audio is sent to the remote party, and the received audio is rendered locally. By default, the SDK uses DefaultAudioDevice which uses the mic for capturing and the local speaker/earpiece/headset for rendering. The AudioDevice API allows for the creation of custom audio capturers and renderers. See this example and API docs to learn more about custom audio devices.

SDK size update

The AudioDevice feature requires additional native APIs that result in a small increase in SDK size. The table below highlights the updated App Size Impact.

Things to note

• Restrictive networks may fail unless ICE servers are provided via ConnectOptions.Builder.iceOptions(...) or AcceptOptions.Builder.iceOptions(...). ICE servers can be obtained from Twilio Network Traversal Service.
• Occasional native crash in AsyncTask of registration/unregistration and event publishing. The crash has only been observed on API 18 devices and results from a thread safety bug in Android. Similar crashes have been reported in the popular networking library OkHttp #1520 #1338. If this bug is impacting your applications, please open an issue on our quickstart and we will investigate potential fixes.

5.1.1

March 20th, 2020

• Programmable Voice Android SDK 5.1.1 [bintray], [docs]

Bug Fixes

• Fixed data types in event payload for Voice Insights events.
• Fixed Voice Insights data with valid transport id value.

Things to Note

• Restrictive networks may fail unless ICE servers are provided via ConnectOptions.Builder.iceOptions(...) or AcceptOptions.Builder.iceOptions(...). ICE servers can be obtained from Twilio Network Traversal Service.
• Occasional native crash in AsyncTask of registration/unregistration and event publishing. The crash has only been observed on API 18 devices and results from a thread safety bug in Android. Similar crashes have been reported in the popular networking library OkHttp #1520 #1338. If this bug is impacting your applications, please open an issue on our quickstart and we will investigate potential fixes.

Library size report

5.1.0

February 28, 2020

• Programmable Voice Android SDK 5.1.0 [bintray], [docs]

Enhancements

• An ongoing call will automatically switch to a more preferred network type if one becomes available. The following are the network types listed in preferred order: ETHERNET, LOOPBACK, WIFI, VPN, and CELLULAR. For example, if a WIFI network becomes available whilst in a call that is using CELLULAR data, the call will automatically switch to using the WIFI network.
• Attempts to re-establish the media connection will be done preemptively if no media flow is detected for 3 seconds.

Bug fixes

• Fixed data types in event payload for Voice Insights events.

Things to note

• Restrictive networks may fail unless ICE servers are provided via ConnectOptions.Builder.iceOptions(...) or AcceptOptions.Builder.iceOptions(...). ICE servers can be obtained from Twilio Network Traversal Service.
• Occasional native crash in AsyncTask of registration/unregistration and event publishing. The crash has only been observed on API 18 devices and results from a thread safety bug in Android. Similar crashes have been reported in the popular networking library OkHttp #1520 #1338. If this bug is impacting your applications, please open an issue on our quickstart and we will investigate potential fixes.

Library size report

5.0.2

December 6, 2019

• Programmable Voice Android SDK 5.0.2 [bintray], [docs]

Enhancements

• The HttpsURLConnection thread is now tagged using Traffic.setThreadStatsTag. This change prevents warnings and/or crashes when an App is started using strictMode.
• Application name, id, version, build number, and min/major sdk version are now published to Insights. This helps with isolating problems if an issue is encountered.

Things to note

• Restrictive networks may fail unless ICE servers are provided via ConnectOptions.Builder.iceOptions(...) or AcceptOptions.Builder.iceOptions(...). ICE servers can be obtained from Twilio Network Traversal Service.
• Occasional native crash in AsyncTask of registration/unregistration and event publishing. The crash has only been observed on API 18 devices and results from a thread safety bug in Android. Similar crashes have been reported in the popular networking library OkHttp #1520 #1338. If this bug is impacting your applications, please open an issue on our quickstart and we will investigate potential fixes.

Library size report

5.0.1

November 19, 2019

• Programmable Voice Android SDK 5.0.1 [bintray], [docs]

Enhancements

• Incoming call handling improvements. Previously, if we encountered network issues before an incoming call was answered or rejected, we disconnected the call. With this release, we will continue to try and establish a connection to Twilio for a maximum of 40 seconds before we disconnect the call.

• We now publish the negotiated codec and its associated parameters to Insights.

Other improvements

• Improved the way we perform DNS resolution. Previously, some DNS requests could indirectly block the main thread. This is no longer the case.

Things to note

• Restrictive networks may fail unless ICE servers are provided via ConnectOptions.Builder.iceOptions(...) or AcceptOptions.Builder.iceOptions(...). ICE servers can be obtained from Twilio Network Traversal Service.
• Occasional native crash in AsyncTask of registration/unregistration and event publishing. The crash has only been observed on API 18 devices and results from a thread safety bug in Android. Similar crashes have been reported in the popular networking library OkHttp #1520 #1338. If this bug is impacting your applications, please open an issue on our quickstart and we will investigate potential fixes.

Library size report

5.0.0

October 28, 2019

• Programmable Voice Android SDK 5.0.0 [bintray], [docs]

This release introduces an update to the Programmable Voice call model. To upgrade your application please follow the migration guide.

Background

Prior to 5.0.0, when Voice.register(...) is invoked, the Voice SDK registers for two push notifications: a call and cancel push notification. The call and cancel push notification payloads could then be passed as arguments to Voice.handleMessage(...) and your application would be provided with a callback via MessageListener indicating if the message was a CallInvite or CancelledCallInvite.

Starting with 5.0.0, when Voice.register(...) is invoked, the Voice SDK will register for call push notifications and cancelled call invites will be determined via a signaling connection. Voice.handleMessage(...) no longer processes cancel push notification payloads and will return false if provided with a cancel message. As a result, developers must re-register via Voice.register(...) after upgrading their application to 5.0.0 to stop receiving cancel push notifications.

CallInvite and CancelledCallInvite updates

A valid call push notification, when passed to Voice.handleMessage(...), will still result in a CallInvite being raised to the provided MessageListener. A CancelledCallInvite will be raised to the provided MessageListener if any of the following events occur:

• The call is prematurely disconnected by the caller.
• The callee does not accept or reject the call within 30 seconds.
• The Voice SDK is unable to establish a connection to Twilio.

A CancelledCallInvite will not be raised if a CallInvite is accepted or rejected.

Insights

To provide observability for incoming call cancellations the following Insights events have been added:

API updates

• MessageListener.onCancelledCallInvite has been updated to the following signature.

  void onCancelledCallInvite(@NonNull CancelledCallInvite cancelledCallInvite, @Nullable CallException callException)

  The provided CallException will indicate if a call was cancelled as the result of an error. If no error occurred, then the CallException is null.

• Both Voice.handleMessage(...) methods require an Android Context as the first argument.

• CallInvite class includes isValid(...) utility method to validate whether the payload is a valid notification sent by Twilio. A valid notification payload will result in a CallInvite being raised via MessageListener.onCallInvite(...) callback when passed to Voice.handleMessage(...).

• Enabling insights and setting the region are now specified on the Voice class. These options were previously accessible on ConnectOptions and AcceptOptions.

  • Sending stats data to Insights is enabled by default.
  • The default region uses Global Low Latency routing, which establishes a connection with the closest region to the user.

  Below are the new methods signatures introduced in Voice class.

  public static boolean isInsightsEnabled(); public static void enableInsights(boolean enable); @NonNull public static String getRegion(); public static void setRegion(@NonNull String region)

• Introduced a new error code that gets surfaced when handleMessage(..) API is called with push notification bundle with twilio.voice.cancel as the twi_message_type.

Enhancements

• CLIENT-6757 Updated the Android Gradle Plugin to 3.5.0 and Gradle to 5.4.1.

Known issues

• CLIENT-4943 Restrictive networks may fail unless ICE servers are provided via ConnectOptions.Builder.iceOptions(...) or AcceptOptions.Builder.iceOptions(...). ICE servers can be obtained from Twilio Network Traversal Service.
• CLIENT-5242 Occasional native crash in AsyncTask of registration/unregistration and event publishing. The crash has only been observed on API 18 devices and results from a thread safety bug in Android. Similar crashes have been reported in the popular networking library OkHttp #1520 #1338. If this bug is impacting your applications, please open an issue on our quickstart and we will investigate potential fixes.

Library size report

4.5.0

August 20th, 2019

• Programmable Voice Android SDK 4.5.0 [bintray], [docs]

Enhancements

Differentiated Services Code Point (DSCP) Tagging API

The Differentiated Services Code Point (DSCP) Tagging API allows you to mark the audio packets with Expedited Forwarding (EF) for the purposes of improved packet routing. This behavior is enabled by default. When enabled, supporting networks will prioritize audio packet delivery for improved audio quality.

Reference the following code snippet to control enabling DSCP.

Configure DSCP with ConnectOptions

ConnectOptions connectOptions = new ConnectOptions.Builder(accessToken)
        .enableDscp(enableDscp)
        .build();
Voice.connect(context, connectOptions, callListener);

Configure DSCP with AcceptOptions

AcceptOptions acceptOptions = new AcceptOptions.Builder()
        .enableDscp(enableDscp)
        .build();
callInvite.accept(context, acceptOptions, callListener); 

Known Issues

• CLIENT-4943 Restrictive networks may fail unless ICE servers are provided via ConnectOptions.Builder.iceOptions(...) or AcceptOptions.Builder.iceOptions(...). ICE servers can be obtained from Twilio Network Traversal Service.
• CLIENT-5242 Occasional native crash in AsyncTask of registration/unregistration and event publishing. The crash has only been observed on API 18 devices and results from a thread safety bug in Android. Similar crashes have been reported in the popular networking library OkHttp #1520 #1338. If this bug is impacting your applications, please open an issue on our quickstart and we will investigate potential fixes.

Library Size Report

4.4.0

August 2nd, 2019

• Programmable Voice Android SDK 4.4.0 [bintray], [docs]

Enhancements

Custom Parameters in Canceled Call Notification

You can now retrieve the custom parameters set in your TwiML application from CancelledCallInvite. With this addition, you can for example, display a missed call notification with the caller’s display name retrieved from the CancelledCallInvite getCustomParamaters().

For more information, refer to the API docs

// Pass custom parameters in TwiML
<?xml version="1.0" encoding="UTF-8"?>
    <Response>
        <Dial answerOnBridge="false" callerId="client:alice">
            <Client>
                <Identity>bob</Identity>
                <Parameter name="caller_first_name" value="alice"  />
                <Parameter name="caller_last_name" value="smith"  />
            </Client>
        </Dial>
    </Response>

cancelledCallInvite.getCustomParameters() returns a map of key-value pair passed in the TwiML.

"caller_first_name" -> "alice"
"caller_last_name" -> "smith"

• CLIENT-5845 Insights events ringing in the connection group guarantees to include CallSid.

Known Issues

• CLIENT-4943 Restrictive networks may fail unless ICE servers are provided via ConnectOptions.Builder.iceOptions(...) or AcceptOptions.Builder.iceOptions(...). ICE servers can be obtained from Twilio Network Traversal Service.
• CLIENT-5242 Occasional native crash in AsyncTask of registration/unregistration and event publishing. The crash has only been observed on API 18 devices and results from a thread safety bug in Android. Similar crashes have been reported in the popular networking library OkHttp #1520 #1338. If this bug is impacting your applications, please open an issue on our quickstart and we will investigate potential fixes.

Library Size Report

4.3.0

July 29th, 2019

• Programmable Voice Android SDK 4.3.0 [bintray], [docs]

Enhancements

• CLIENT-6428 The SDK Android Gradle Plugin was updated from 3.3.2 to 3.4.2 and the Gradle version was updated from 4.10.3 to 5.1.1.
• CLIENT-6331 OpenSLES is now disabled by default for both incoming and outgoing calls unless explicitly enabled. To enable OpenSLES, execute the following before invoking Voice.connect(...) or CallInvite.accept(...): tvo.webrtc.voiceengine.WebRtcAudioManager.setBlacklistDeviceForOpenSLESUsage(false).

Known Issues

• CLIENT-4943 Restrictive networks may fail unless ICE servers are provided via ConnectOptions.Builder.iceOptions(...) or AcceptOptions.Builder.iceOptions(...). ICE servers can be obtained from Twilio Network Traversal Service.
• CLIENT-5242 Occasional native crash in AsyncTask of registration/unregistration and event publishing. The crash has only been observed on API 18 devices and results from a thread safety bug in Android. Similar crashes have been reported in the popular networking library OkHttp #1520 #1338. If this bug is impacting your applications, please open an issue on our quickstart and we will investigate potential fixes.

Library Size Report

4.2.0

July 24th, 2019

• Programmable Voice Android SDK 4.2.0 [bintray], [docs]

Enhancements

• The SDK compileSDKVersion and targetSDKVersion SDK was updated to 28 from 27. No changes are required to migrate to this version in an existing application.

Known Issues

• CLIENT-4943 Restrictive networks may fail unless ICE servers are provided via ConnectOptions.Builder.iceOptions(...) or AcceptOptions.Builder.iceOptions(...). ICE servers can be obtained from Twilio Network Traversal Service.
• CLIENT-5242 Occasional native crash in AsyncTask of registration/unregistration and event publishing. The crash has only been observed on API 18 devices and results from a thread safety bug in Android. Similar crashes have been reported in the popular networking library OkHttp #1520 #1338. If this bug is impacting your applications, please open an issue on our quickstart and we will investigate potential fixes.

Library Size Report

4.1.0

July 12th, 2019

• Programmable Voice Android SDK 4.1.0 [bintray], [docs]

New Features

Max Average Bandwidth API

By default, Opus codec is set up with a bitrate of around 32kbps (40-50kbps on the wire). With this release, you are able to set a custom max average bitrate transmission to better control how much bandwidth your VoIP application should use. See RFC-7587 7.1 for information about Max Average Bitrate.

The main purpose of this API is to set a lower max average bitrate to minimize bandwidth usage. This is particularly useful in deployments where bandwidth is a premium. Where bandwidth is not of concern, you do not need to use this API.

Max Average Bitrate can be set to as low as 6,000bps and as high as 51,000bps. Values outside this range are ignored and the default Opus operation mode is used. See API Docs for more information.

As would be expected, lowering the max average bitrate impacts audio quality. We don’t recommend setting max average bitrate to a value below 8,000bps. On the other hand, setting values over 32,000bps will have negligible audio quality improvements.

For example, to set a new max average bitrate to 16,000bps:

ConnectOptions connectOptions = new ConnectOptions.Builder(accessToken)
                        .params(params)
                        .preferAudioCodecs(Arrays.asList( new OpusCodec(16000)))
                        .build();
Call call = Voice.connect(VoiceActivity.this, connectOptions, callListener);

Other Enhancements

• Programmable Voice Android SDK transmits data for VoIP calls and for Insights. With this release, we have reduced Insights related data consumption by around 25%. This was accomplished by reducing the events reporting interval.
• The SDK now reports ice-candidate events to Insights. These events are raised when OnIceCandidate is called on the PeerConnection.

Known Issues

• Restrictive networks may fail unless ICE servers are provided via ConnectOptions.Builder.iceOptions(...) or AcceptOptions.Builder.iceOptions(...). ICE servers can be obtained from Twilio Network Traversal Service.
• Occasional native crash in AsyncTask of registration/unregistration and event publishing. The crash has only been observed on API 18 devices and results from a thread safety bug in Android. Similar crashes have been reported in the popular networking library OkHttp #1520 #1338. If this bug is impacting your applications, please open an issue on our quickstart and we will investigate potential fixes.

Library Size Report

4.0.0

June 28th, 2019

• Programmable Voice Android SDK 4.0.0 [bintray], [docs]

New Features

Reconnecting State API

This release introduces the new Reconnecting State API. This API adds a new state RECONNECTING to Call.State and two new Call.Listener() callbacks, onReconnecting(...) and onReconnected(...).

Call reconnection capability has been available since SDK 3.0. For example, if a call is established over a wifi network and the wifi network becomes unavailable, the SDK will automatically switch the call over to the next available network.

This release adds the reconnection related callbacks. onReconnecting(...) indicates when a call is being reconnected due to a network disruption or network switch over and onReconnected(...) is called once the call has been re-connected. You can use this information to provide intuitive feedback to your App user when a reconnection is taking place.

Migration Guide

Migrating from 3.x is very simple. Please refer to our migration guide for more information.

Known Issues

• Restrictive networks may fail unless ICE servers are provided via ConnectOptions.Builder.iceOptions(...) or AcceptOptions.Builder.iceOptions(...). ICE servers can be obtained from Twilio Network Traversal Service.
• Occasional native crash in AsyncTask of registration/unregistration and event publishing. The crash has only been observed on API 18 devices and results from a thread safety bug in Android. Similar crashes have been reported in the popular networking library OkHttp #1520 #1338. If this bug is impacting your applications, please open an issue on our quickstart and we will investigate potential fixes.

Library Size Report

3.3.0

June 26th, 2019

• Programmable Voice Android SDK 3.3.0 [bintray], [docs]

Enhancements

• Insights events reconnecting and reconnected in the connection group are now documented in the Javadoc for the Call class.
• CLIENT-6218 Insights events 53001/Signaling connection disconnected and 53405/Media connection failed in the connection group that are raised when attempting to reconnect are now raised with Insights level "warning". Previously, they were raised with level "error".
• CLIENT-6257 Added AddressIncompleteException to indicate that the number of the callee is malformed.

Bug Fixes

• CLIENT-6205 Fixed an issue where a 31408/Request Timeout would result in a 31005/Connection error

Known Issues

• CLIENT-4943 Restrictive networks may fail unless ICE servers are provided via ConnectOptions.Builder.iceOptions(...) or AcceptOptions.Builder.iceOptions(...). ICE servers can be obtained from Twilio Network Traversal Service.
• CLIENT-5242 Occasional native crash in AsyncTask of registration/unregistration and event publishing. The crash has only been observed on API 18 devices and results from a thread safety bug in Android. Similar crashes have been reported in the popular networking library OkHttp #1520 #1338. If this bug is impacting your applications, please open an issue on our quickstart and we will investigate potential fixes.

Library Size Report

3.2.0

June 21st, 2019

• Programmable Voice Android SDK 3..2.0 [bintray], [docs]

Enhancements

• CLIENT-6282 The SDK can now be compiled alongside the Programmable Video SDK. Please perform the following steps to properly upgrade to 3.2.0
  • Modify the classpath of any java files used from org.webrtc.* to tvo.webrtc.*. Calling APIs to any class in org.webrtc.* will have no effect within the Voice SDK.
  • Perform the following modifications to your proguard file when compiling the Voice SDK for a release build with obfuscation.
  • Change -keep class org.webrtc.** { *; } to -keep class tvo.webrtc.** { *; }
  • Change -dontwarn org.webrtc.** to -dontwarn tvo.webrtc.**

Known Issues

• CLIENT-4943 Restrictive networks may fail unless ICE servers are provided via ConnectOptions.Builder.iceOptions(...) or AcceptOptions.Builder.iceOptions(...). ICE servers can be obtained from Twilio Network Traversal Service.
• CLIENT-5242 Occasional native crash in AsyncTask of registration/unregistration and event publishing. The crash has only been observed on API 18 devices and results from a thread safety bug in Android. Similar crashes have been reported in the popular networking library OkHttp #1520 #1338. If this bug is impacting your applications, please open an issue on our quickstart and we will investigate potential fixes.

Library Size Report

3.1.2

June 20th, 2019

• Programmable Voice Android SDK 3.1.2 [bintray], [docs]

Bug Fixes

• CLIENT-6246 Fixed bug on API 19 and below where the SDK would incorrectly surface a REGISTRATION_ERROR_CODE/31301 exception for calls to Voice.register(...) or Voice.unregister(...) when a EXCEPTION_INVALID_ACCESS_TOKEN/20101 actually occurred.

Known Issues

• CLIENT-5075 The SDK cannot be added alongside the Programmable Video SDK.
• CLIENT-4943 Restrictive networks may fail unless ICE servers are provided via ConnectOptions.Builder.iceOptions(...) or AcceptOptions.Builder.iceOptions(...). ICE servers can be obtained from Twilio Network Traversal Service.
• CLIENT-5242 Occasional native crash in AsyncTask of registration/unregistration and event publishing. The crash has only been observed on API 18 devices and results from a thread safety bug in Android. Similar crashes have been reported in the popular networking library OkHttp #1520 #1338. If this bug is impacting your applications, please open an issue on our quickstart and we will investigate potential fixes.

Library Size Report

3.1.1

June 12th, 2019

• Programmable Voice Android SDK 3.1.1 [bintray], [docs]

Enhancements

• Switched CI provider for build, test, and release pipeline.
• The Twilio CDN will no longer host the Voice Android aar artifacts or Javadocs. All artifacts and javadocs previously hosted on the Twilio CDN will remain.

Accessing Artifacts

If you are downloading Voice Android SDK artifacts from the Twilio CDN then there are two options available moving forward.

1. Follow our Get Started with the Programmable Voice SDKs.
2. Download the artifacts directly from Bintray.

Viewing Javadocs

All Javadocs back to 3.0.0-preview1 are now hosted on Github Pages with the following URL scheme. https://twilio.github.io/twilio-voice-android/docs/{version}

• To view 3.1.1 Javadocs go to https://twilio.github.io/twilio-voice-android/docs/3.1.1

Known Issues

• CLIENT-5075 The SDK cannot be added alongside the Programmable Video SDK.
• CLIENT-4943 Restrictive networks may fail unless ICE servers are provided via ConnectOptions.Builder.iceOptions(...) or AcceptOptions.Builder.iceOptions(...). ICE servers can be obtained from Twilio Network Traversal Service.
• CLIENT-5242 Occasional native crash in AsyncTask of registration/unregistration and event publishing. The crash has only been observed on API 18 devices and results from a thread safety bug in Android. Similar crashes have been reported in the popular networking library OkHttp #1520 #1338. If this bug is impacting your applications, please open an issue on our quickstart and we will investigate potential fixes.

Library Size Report

3.1.0

May 16th, 2019

• Programmable Voice Android SDK 3.1.0 [bintray], [docs]

Enhancements

Improved error codes

We now surface more details about errors encountered during Voice.register(...), Voice.unregister(...), Voice.connect(...), and CallInvite.accept(...). Previously, these functions reported these errors with the generic error REGISTRATION_ERROR_CODE/31301 or EXCEPTION_CONNECTION_ERROR/31005.

With the new error codes, you can make more informed decisions about how to remedy the problem. For example, error code EXCEPTION_BAD_REQUEST and EXCEPTION_TOO_MANY_REQUEST indicate potential programming issues, while EXCEPTION_ACCESS_TOKEN_REJECTED indicates an issue with your Access Token.

Please note, you may need to change your code if you have added special handling for REGISTRATION_ERROR_CODE/31301 or EXCEPTION_CONNECTION_ERROR/31005.

For more information see the API docs

The following is a summary of the new codes available for Voice.register(...) and Voice.unregister(...):

The following is a summary of the new codes available for Voice.connect(...) and CallInvite.accept(...):

Bug Fixes

• CLIENT-6077 The SDK reports error events to Insights when exception occurs during registration/unregistration.

Known Issues

• CLIENT-5075 The SDK cannot be added alongside the Programmable Video SDK.
• CLIENT-4943 Restrictive networks may fail unless ICE servers are provided via ConnectOptions.Builder.iceOptions(...) or AcceptOptions.Builder.iceOptions(...). ICE servers can be obtained from Twilio Network Traversal Service.
• CLIENT-5242 Occasional native crash in AsyncTask of registration/unregistration and event publishing. The crash has only been observed on API 18 devices and results from a thread safety bug in Android. Similar crashes have been reported in the popular networking library OkHttp #1520 #1338. If this bug is impacting your applications, please open an issue on our quickstart and we will investigate potential fixes.

Library Size Report

3.0.0

April 25th, 2019

• Programmable Voice Android SDK 3.0.0 [bintray], [docs]

We have promoted 3.0.0-beta13 to 3.0.0. Reference our migration guide to upgrade your applications to 3.0.0.

Known Issues

• CLIENT-5075 The SDK cannot be added alongside the Programmable Video SDK.
• CLIENT-4943 Restrictive networks may fail unless ICE servers are provided via ConnectOptions.Builder.iceOptions(...) or AcceptOptions.Builder.iceOptions(...). ICE servers can be obtained from Twilio Network Traversal Service.
• CLIENT-5242 Occasional native crash in AsyncTask of registration/unregistration and event publishing. The crash has only been observed on API 18 devices and results from a thread safety bug in Android. Similar crashes have been reported in the popular networking library OkHttp #1520 #1338. If this bug is impacting your applications, please open an issue on our quickstart and we will investigate potential fixes.

Library Size Report

3.0.0-beta13

April 18th, 2019

• Programmable Voice Android SDK 3.0.0-beta13 [bintray], [docs]

Bug Fixes

• CLIENT-5981 The SDK erroneously raised multiple call quality warnings events to Insights.

Known Issues

• CLIENT-5075 The SDK cannot be added alongside the Programmable Video SDK.
• CLIENT-4943 Restrictive networks may fail unless ICE servers are provided via ConnectOptions.Builder.iceOptions(...) or AcceptOptions.Builder.iceOptions(...). ICE servers can be obtained from Twilio Network Traversal Service.
• CLIENT-5242 Occasional native crash in AsyncTask of registration/unregistration and event publishing. The crash has only been observed on API 18 devices and results from a thread safety bug in Android. Similar crashes have been reported in the popular networking library OkHttp #1520 #1338. If this bug is impacting your applications, please open an issue on our quickstart and we will investigate potential fixes.

Library Size Report

3.0.0-beta12

April 17th, 2019

• Programmable Voice Android SDK 3.0.0-beta12 [bintray], [docs]

Enhancements

• CLIENT-5974 Removed unused error CallConnectionTimeoutException, AudioDeviceErrorException, SignalingConnectionErrorCode, SignalingConnectionTimeoutErrorCode, SignalingIncomingMessageInvalidErrorCode, SignalingOutgoingMessageInvalidErrorCode, ConfigurationAcquireFailedErrorCode, ConfigurationAcquireTurnFailedErrorCode from the CallException error code class.

Bug Fixes

• CLIENT-5935 Fixed a bug where constant audio level warning Insights events are reported when the call is muted or on hold.
• CLIENT-5951 Fixed a bug where "packets_lost" field was missing in the metric event.
• CLIENT-5954 Fixed a bug where the SDK reported integer MOS score with "low-mos" warning event.
• Client 5978 Fixed a bug where the SDK reported double values for packets_lost_fraction to Insights instead of integer.

Known Issues

• CLIENT-5075 The SDK cannot be added alongside the Programmable Video SDK.
• CLIENT-4943 Restrictive networks may fail unless ICE servers are provided via ConnectOptions.Builder.iceOptions(...) or AcceptOptions.Builder.iceOptions(...). ICE servers can be obtained from Twilio Network Traversal Service.
• CLIENT-5242 Occasional native crash in AsyncTask of registration/unregistration and event publishing. The crash has only been observed on API 18 devices and results from a thread safety bug in Android. Similar crashes have been reported in the popular networking library OkHttp #1520 #1338. If this bug is impacting your applications, please open an issue on our quickstart and we will investigate potential fixes.

Library Size Report

3.0.0-beta11

April 12th, 2019

• Programmable Voice Android SDK 3.0.0-beta11 [bintray], [docs]

Bug Fixes

• CLIENT-5899 Fixed an issue where in rare cases a call got disconnected during call setup due to frequent network changes.

Known Issues

• CLIENT-5075 The SDK cannot be added alongside the Programmable Video SDK.
• CLIENT-4943 Restrictive networks may fail unless ICE servers are provided via ConnectOptions.Builder.iceOptions(...) or AcceptOptions.Builder.iceOptions(...). ICE servers can be obtained from Twilio Network Traversal Service.
• CLIENT-5242 Occasional native crash in AsyncTask of registration/unregistration and event publishing. The crash has only been observed on API 18 devices and results from a thread safety bug in Android. Similar crashes have been reported in the popular networking library OkHttp #1520 #1338. If this bug is impacting your applications, please open an issue on our quickstart and we will investigate potential fixes.

Library Size Report

3.0.0-beta10

April 4th, 2019

• Programmable Voice Android SDK 3.0.0-beta10 [bintray], [docs]

Bug Fixes

• CLIENT-5379 Fixed an issue where WiFi to WiFi network handoff was causing one-way audio followed by Call disconnect.

Known Issues

• CLIENT-5576 LTE to WiFI handover may cause one way audio.
• CLIENT-5075 The SDK cannot be added alongside the Programmable Video SDK.
• CLIENT-4943 Restrictive networks may fail unless ICE servers are provided via ConnectOptions.Builder.iceOptions(...) or AcceptOptions.Builder.iceOptions(...). ICE servers can be obtained from Twilio Network Traversal Service.
• CLIENT-5242 Occasional native crash in AsyncTask of registration/unregistration and event publishing. The crash has only been observed on API 18 devices and results from a thread safety bug in Android. Similar crashes have been reported in the popular networking library OkHttp #1520 #1338. If this bug is impacting your applications, please open an issue on our quickstart and we will investigate potential fixes.

Library Size Report

3.0.0-beta9

April 2nd, 2019

• Programmable Voice Android SDK 3.0.0-beta9 [bintray], [docs]

Bug Fixes

• CLIENT-5828, CLIENT-5868 A network change that occurs during a reconnection will now trigger another reconnection attempt ensuring media is restored on the correct network.
• CLIENT-5882 Call metrics insights will always be available when the Call is in Call.State.CONNECTED state including after a network handover.

Known Issues

• CLIENT-5576 LTE to WiFI handover may cause one way audio.
• CLIENT-5075 The SDK cannot be added alongside the Programmable Video SDK.
• CLIENT-4943 Restrictive networks may fail unless ICE servers are provided via ConnectOptions.Builder.iceOptions(...) or AcceptOptions.Builder.iceOptions(...). ICE servers can be obtained from Twilio Network Traversal Service.
• CLIENT-5242 Occasional native crash in AsyncTask of registration/unregistration and event publishing. The crash has only been observed on API 18 devices and results from a thread safety bug in Android. Similar crashes have been reported in the popular networking library OkHttp #1520 #1338. If this bug is impacting your applications, please open an issue on our quickstart and we will investigate potential fixes.

Library Size Report

3.0.0-beta8

March 27th, 2019

• Programmable Voice Android SDK 3.0.0-beta8 [bintray], [docs]

API Changes

• Attempts to connect a call via Voice.connect(...) or CallInvite.accept(...) that fail prior to reaching the connected state will always raise an onConnectFailure(...) with an error code. However, if Call.disconnect() is called while an attempt to connect or accept a call is made, the onDisconnected(...) will be raised with no error.

Updates

• CLIENT-5808 CLIENT-5809 Updated the API documentation for CallInvite.accept.
• CLIENT-5811 Updated the API documentation for Call.

Bug Fixes

• CLIENT-5813 Network loss scenarios that resulted in a call failure now raise the onConnectFailure(...) callback. Previously these scenarios erroneously raised onDisconnected(...).
• CLIENT-5754 A call that fails as a result of not establishing a media connection prior to being connected now raises the onConnectFailure(...) callback. Previously this scenario erroneously raised onDisconnected(...).
• CLIENT-5821 The packets_lost_fraction value reported to Insights is correctly computed and within the expect range of 0 to 100.
• CLIENT-5835 Events were erroneously reported to Insights when the ConnectOptions.enableInsights property was set to false.

Known Issues

• CLIENT-5576 LTE to WiFI handover may cause one way audio.
• CLIENT-5075 The SDK cannot be added alongside the Programmable Video SDK.
• CLIENT-4943 Restrictive networks may fail unless ICE servers are provided via ConnectOptions.Builder.iceOptions(...) or AcceptOptions.Builder.iceOptions(...). ICE servers can be obtained from Twilio Network Traversal Service.
• CLIENT-5242 Occasional native crash in AsyncTask of registration/unregistration and event publishing. The crash has only been observed on API 18 devices and results from a thread safety bug in Android. Similar crashes have been reported in the popular networking library OkHttp #1520 #1338. If this bug is impacting your applications, please open an issue on our quickstart and we will investigate potential fixes.
• CLIENT-5882 Call metrics insights becomes unavailable after a network handover during a call.

Library Size Report

3.0.0-beta7

March 19th, 2019

• Programmable Voice Android SDK 3.0.0-beta7 [bintray], [docs]

API Changes

• The getFrom() method from CallInvite and CancelledCallInvite is now nullable in case the value is not available in the call invite message.

Bug Fixes

• CLIENT-5800: Fixed an issue where an incoming call invite that did not contain a from field was not considered a valid message.

Known Issues

• CLIENT-5576 LTE to WiFI handover may cause one way audio.
• CLIENT-5075 The SDK cannot be added alongside the Programmable Video SDK.
• CLIENT-4943 Restrictive networks may fail unless ICE servers are provided via ConnectOptions.Builder.iceOptions(...) or AcceptOptions.Builder.iceOptions(...). ICE servers can be obtained from Twilio Network Traversal Service.
• CLIENT-5242 Occasional native crash in AsyncTask of registration/unregistration and event publishing. The crash has only been observed on API 18 devices and results from a thread safety bug in Android. Similar crashes have been reported in the popular networking library OkHttp #1520 #1338. If this bug is impacting your applications, please open an issue on our quickstart and we will investigate potential fixes.
• CLIENT-5882 Call metrics insights becomes unavailable after a network handover during a call.

Library Size Report

3.0.0-beta6

March 14th, 2019

• Programmable Voice Android SDK 3.0.0-beta6 [bintray], [docs]

Updates

• CLIENT-5742 Removed context parameter in handleMessage(...) API.
• CLIENT-5353 Built with an audio only variant of WebRTC 67 where SCTP is disabled.

Known Issues

• CLIENT-5576 LTE to WiFI handover may cause one way audio.
• CLIENT-5075 The SDK cannot be added alongside the Programmable Video SDK.
• CLIENT-4943 Restrictive networks may fail unless ICE servers are provided via ConnectOptions.Builder.iceOptions(...) or AcceptOptions.Builder.iceOptions(...). ICE servers can be obtained from Twilio Network Traversal Service.
• CLIENT-5242 Occasional native crash in AsyncTask of registration/unregistration and event publishing. The crash has only been observed on API 18 devices and results from a thread safety bug in Android. Similar crashes have been reported in the popular networking library OkHttp #1520 #1338. If this bug is impacting your applications, please open an issue on our quickstart and we will investigate potential fixes.
• CLIENT-5882 Call metrics insights becomes unavailable after a network handover during a call.

Library Size Report

3.0.0-beta5

March 4th, 2019

• Programmable Voice Android SDK 3.0.0-beta5 [bintray], [docs]

Updates

• CLIENT-5534 Added IceCandidateStats and IceCandidatePairStats to StatsReport.

Improvements

• CLIENT-5516 Reduced connection time by removing a hostname lookup
• CLIENT-5688 Retry failed DNS resolution during reconnect

Bug Fixes

• CLIENT-5612 Fixed bug where Call may get disconnected when ipv6 WiFi network disappears when LTE connection is on
• CLIENT-5578 CLIENT-5688 Fixed bug where WiFi to WiFi network handover may disconnect the Call while LTE connection is on

Known Issues

• CLIENT-5576 LTE to WiFI handover may cause one way audio.
• CLIENT-5075 The SDK cannot be added alongside the Programmable Video SDK.
• CLIENT-4943 Restrictive networks may fail unless ICE servers are provided via ConnectOptions.Builder.iceOptions(...) or AcceptOptions.Builder.iceOptions(...). ICE servers can be obtained from Twilio Network Traversal Service.
• CLIENT-4805 The SDK size is significantly larger than 2.x. A reduced size will be introduced during the beta period.
• CLIENT-5242 Occasional native crash in AsyncTask of registration/unregistration and event publishing. The crash has only been observed on API 18 devices and results from a thread safety bug in Android. Similar crashes have been reported in the popular networking library OkHttp #1520 #1338. If this bug is impacting your applications, please open an issue on our quickstart and we will investigate potential fixes.
• CLIENT-5882 Call metrics insights becomes unavailable after a network handover during a call.

Library Size Report

3.0.0-beta4

February 12th, 2019

• Programmable Voice Android SDK 3.0.0-beta4 [bintray], [docs]

Bug Fixes

• CLIENT-5539 Fixed bug in HttpsURLConnection management where input, output, and error streams were not closed.

Known issues

• CLIENT-5578 WiFi to WiFi handover may disconnect the Call.
• CLIENT-5576 LTE to WiFI handover may cause one way audio.
• CLIENT-5612 IPv6 WiFi to IPv4 LTE handover may disconnect the Call.
• CLIENT-5075 The SDK cannot be added alongside the Programmable Video SDK.
• CLIENT-4943 Restrictive networks may fail unless ICE servers are provided via ConnectOptions.Builder.iceOptions(...) or AcceptOptions.Builder.iceOptions(...). ICE servers can be obtained from Twilio Network Traversal Service.
• CLIENT-4805 The SDK size is significantly larger than 2.x. A reduced size will be introduced during the beta period.
• CLIENT-5242 Occasional native crash in AsyncTask of registration/unregistration and event publishing. The crash has only been observed on API 18 devices and results from a thread safety bug in Android. Similar crashes have been reported in the popular networking library OkHttp #1520 #1338. If this bug is impacting your applications, please open an issue on our quickstart and we will investigate potential fixes.
• CLIENT-5882 Call metrics insights becomes unavailable after a network handover during a call.

Library Size Report

3.0.0-beta3

February 7th, 2019

• Programmable Voice Android SDK 3.0.0-beta3 [bintray], [docs]

Updates

• CLIENT-5599 Added VoiceException.EXCEPTION_ACCESS_TOKEN_REJECTED. This error is raised when attempting to authenticate with a token that is invalid.
• CLIENT-5587 Removed Context argument from Voice.register(...) and Voice.unregister(...).

Enhancements

• SDK publishes call Insights. Publishing is enabled by default. The preference can be updated by calling ConnectOptions.Builder.enableInsights(boolean) and AcceptOptions.Builder.enableInsights(boolean).
• Implemented network handoff. Signaling and media connection renegotiation are now automatically attempted after network changes.
• Added Call.postFeedback(...) API. This API posts the feedback collected for this call to Twilio. If no parameters are passed, Twilio will report feedback was not available for this call.
• CLIENT-2985 The SDK can connect to Twilio’s Servers in an IPv6 environment.

Bug Fixes

• CLIENT-5569 Fixed bug where SDK does not explicitly use the application context when required. getApplicationContext is now invoked internally on context arguments passed to public API methods when an application context is required.
• CLIENT-5591 Added FATAL definition to LogLevel enum.

Known issues

• CLIENT-5578 WiFi to WiFi handover may disconnect the Call.
• CLIENT-5576 LTE to WiFI handover may cause one way audio.
• CLIENT-5612 IPv6 WiFi to IPv4 LTE handover may disconnect the Call.
• CLIENT-5075 The SDK cannot be added alongside the Programmable Video SDK.
• CLIENT-4943 Restrictive networks may fail unless ICE servers are provided via ConnectOptions.Builder.iceOptions(...) or AcceptOptions.Builder.iceOptions(...). ICE servers can be obtained from Twilio Network Traversal Service.
• CLIENT-4805 The SDK size is significantly larger than 2.x. A reduced size will be introduced during the beta period.
• CLIENT-5242 Occasional native crash in AsyncTask of registration/unregistration and event publishing. The crash has only been observed on API 18 devices and results from a thread safety bug in Android. Similar crashes have been reported in the popular networking library OkHttp #1520 #1338. If this bug is impacting your applications, please open an issue on our quickstart and we will investigate potential fixes.
• CLIENT-5882 Call metrics insights becomes unavailable after a network handover during a call.

Library Size Report

3.0.0-beta2

December 12th, 2018

• Programmable Voice Android SDK 3.0.0-beta2 [bintray], [docs]

Enhancements

• Added new error code 31008. This error is raised when a CallInvite is accepted after a call has ended.
• ConnectOptions.Builder.preferAudioCodecs(...) and AcceptOptions.Builder.preferAudioCodecs(...) were added to set preferred audio codecs.

Bug Fixes

• CLIENT-5398 Unmuting a call on hold causes audio to flow.

Known issues

• CLIENT-5075 The SDK cannot be added alongside the Programmable Video SDK.
• CLIENT-4943 Restrictive networks may fail unless ICE servers are provided via ConnectOptions.Builder.iceOptions(...) or AcceptOptions.Builder.iceOptions(...). ICE servers can be obtained from Twilio Network Traversal Service.
• CLIENT-4805 The SDK size is significantly larger than 2.x. A reduced size will be introduced during the beta period.
• CLIENT-4998 Network handoff, and subsequent connection renegotiation is not supported.
• CLIENT-2985 IPv6 is not supported.
• CLIENT-4673 Error codes 20151 report different message and explanation text than Voice 2.0 SDKs
• CLIENT-4537 PCMU is the only supported codec. We plan on adding support for Opus moving forward. #117
• CLIENT-5242 Occasional native crash in AsyncTask of registration/unregistration and event publishing. The crash has only been observed on API 18 devices and results from a thread safety bug in Android. Similar crashes have been reported in the popular networking library OkHttp #1520 #1338. If this bug is impacting your applications, please open an issue on our quickstart and we will investigate potential fixes.

Library Size Report

3.0.0-beta1

November 24th, 2018

• Programmable Voice Android SDK 3.0.0-beta1 [bintray], [docs]

Enhancements

• Documented the default log level LogLevel.ERROR in getLogLevel and getLogModuleLevel javadoc.
• Added media and signaling related error codes.

Known issues

• CLIENT-5075 The SDK cannot be added alongside the Programmable Video SDK.=
• CLIENT-4943 Restrictive networks may fail unless ICE servers are provided via ConnectOptions.Builder.iceOptions(...) or AcceptOptions.Builder.iceOptions(...). ICE servers can be obtained from Twilio Network Traversal Service.
• CLIENT-4805 The SDK size is significantly larger than 2.x. A reduced size will be introduced during the beta period.
• CLIENT-4998 Network handoff, and subsequent connection renegotiation is not supported.
• CLIENT-2985 IPv6 is not supported.
• CLIENT-4673 Error codes 20151 report different message and explanation text than Voice 2.0 SDKs
• CLIENT-4537 PCMU is the only supported codec. We plan on adding support for Opus moving forward. #117
• CLIENT-5242 Occasional native crash in AsyncTask of registration/unregistration and event publishing. The crash has only been observed on API 18 devices and results from a thread safety bug in Android. Similar crashes have been reported in the popular networking library OkHttp #1520 #1338. If this bug is impacting your applications, please open an issue on our quickstart and we will investigate potential fixes.
• CLIENT-5398 Unmuting a call on hold causes audio to flow.

Library Size Report

3.0.0-preview6

October 30th, 2018

• Programmable Voice Android SDK 3.0.0-preview6 [bintray], [docs]

Enhancements

• The Android Voice SDK is built with an audio only variant of WebRTC 67. The table below shows the size reduction from compiling with an audio only variant release:

  ABI	3.0.0-preview5 App Size Increase	3.0.0-preview6 App Size Increase
  universal	17.8MB	15.1MB
  armeabi-v7a	4MB	3.4MB
  arm64-v8a	4.6MB	3.9MB
  x86	4.9MB	4MB
  x86_64	4.9MB	4.1MB

Known issues

• CLIENT-5075 The SDK cannot be added alongside the Programmable Video SDK.
• CLIENT-5062 Calls made to a client or PSTN number that have a long duration before answering may not get connected.
• CLIENT-4943 Restrictive networks may fail unless ICE servers are provided via ConnectOptions.Builder.iceOptions(...) or AcceptOptions.Builder.iceOptions(...). ICE servers can be obtained from Twilio Network Traversal Service.
• CLIENT-4805 The SDK size is significantly larger than 2.x. A reduced size will be introduced during the beta period.
• CLIENT-4998 Network handoff, and subsequent connection renegotiation is not supported.
• CLIENT-2985 IPv6 is not supported.
• CLIENT-4673 Error codes 20151 report different message and explanation text than Voice 2.0 SDKs
• CLIENT-4537 PCMU is the only supported codec. We plan on adding support for Opus moving forward. #117
• CLIENT-5242 Occasional native crash in AsyncTask of registration/unregistration and event publishing. The crash has only been observed on API 18 devices and results from a thread safety bug in Android. Similar crashes have been reported in the popular networking library OkHttp #1520 #1338. If this bug is impacting your applications, please open an issue on our quickstart and we will investigate potential fixes.

Library Size Report

3.0.0-preview5

October 1st, 2018

• Programmable Voice Android SDK 3.0.0-preview5 [bintray], [docs]

Enhancements

• Added custom parameters to CallInvite with a new method called getCustomParamaters().

// Pass custom parameters in TwiML
<?xml version="1.0" encoding="UTF-8"?>
    <Response>
        <Dial answerOnBridge="false" callerId="client:alice">
            <Client>
                <Identity>bob</Identity>
                <Parameter name="caller_first_name" value="alice"  />
                <Parameter name="caller_last_name" value="smith"  />
            </Client>
        </Dial>
    </Response>

callInvite.getCustomParameters() returns a map of key-value pair passed in the TwiML.

"caller_first_name" -> "alice"
"caller_last_name" -> "smith"

Known issues

• CLIENT-5075 The SDK cannot be added alongside the Programmable Video SDK.
• CLIENT-5062 Calls made to a client or PSTN number that have a long duration before answering may not get connected.
• CLIENT-4943 Restrictive networks may fail unless ICE servers are provided via ConnectOptions.Builder.iceOptions(...) or AcceptOptions.Builder.iceOptions(...). ICE servers can be obtained from Twilio Network Traversal Service.
• CLIENT-4805 The SDK size is significantly larger than 2.x. A reduced size will be introduced during the beta period.
• CLIENT-4998 Network handoff, and subsequent connection renegotiation is not supported.
• CLIENT-2985 IPv6 is not supported.
• CLIENT-4673 Error codes 20151 report different message and explanation text than Voice 2.0 SDKs
• CLIENT-4537 PCMU is the only supported codec. We plan on adding support for Opus moving forward. #117
• CLIENT-5242 Occasional native crash in AsyncTask of registration/unregistration and event publishing. The crash has only been observed on API 18 devices and results from a thread safety bug in Android. Similar crashes have been reported in the popular networking library OkHttp #1520 #1338. If this bug is impacting your applications, please open an issue on our quickstart and we will investigate potential fixes.

Library Size Report

3.0.0-preview4

September 27th, 2018

• Programmable Voice Android SDK 3.0.0-preview4 [bintray], [docs]

Enhancements

• Upgraded to WebRTC 67

• Upgraded to Java 8. Add the following snippet to your build.gradle to enable Java 8 features required to build the 3.x Voice Android SDK:

  Groovy android { compileOptions { sourceCompatibility 1.8 targetCompatibility 1.8 } } - Report registration and unregistration events to Twilio Insights.

Known issues

• CLIENT-5075 The SDK cannot be added alongside the Programmable Video SDK.
• CLIENT-5062 Calls made to a client or PSTN number that have a long duration before answering may not get connected.
• CLIENT-4943 Restrictive networks may fail unless ICE servers are provided via ConnectOptions.Builder.iceOptions(...) or AcceptOptions.Builder.iceOptions(...). ICE servers can be obtained from Twilio Network Traversal Service.
• CLIENT-4805 The SDK size is significantly larger than 2.x. A reduced size will be introduced during the beta period.
• CLIENT-4998 Network handoff, and subsequent connection renegotiation is not supported.
• CLIENT-2985 IPv6 is not supported.
• CLIENT-4672, CLIENT-4673 Error codes 20157 and 20151 report different message and explanation text than Voice 2.0 SDKs
• CLIENT-4537 PCMU is the only supported codec. We plan on adding support for Opus moving forward. #117
• CLIENT-5242 Occasional native crash in AsyncTask of registration/unregistration and event publishing. The crash has only been observed on API 18 devices and results from a thread safety bug in Android. Similar crashes have been reported in the popular networking library OkHttp #1520 #1338. If this bug is impacting your applications, please open an issue on our quickstart and we will investigate potential fixes.

Library Size Report

3.0.0-preview3

September 4th, 2018

• Programmable Voice Android SDK 3.0.0-preview3 [bintray], [docs]

Enhancements

API Changes:

• Nullability annotations have been added. Methods that expect @NonNull parameters throw NullPointerException. Methods that validate parameters for a specified input throw IllegalStateException if invalid.
• Moved CallState to Call.State
• Provide a stateless mechanism for processing push messages related to call invites and call invite cancellations. This API no longer raises errors when processing invalid messages, instead a boolean value is returned when handleMessage(context, data) is called. The boolean value is true when the provided data results in a CallInvite or CancelledCallInvite. If handleMessage(context, data) returns false it means the data provided was not a Twilio Voice push message. The CallInvite has an accept() and reject() method. While the CancelledCallInvite simply provides the to, from, and callSid fields also available in the CallInvite. The method getCallSid() can be used to associate a CallInvite with a CancelledCallInvite.
• Migrated the API CallInvite to CallInvite and CancelledCallInvite.

       // Processing push messages in 2.X
       handleMessage(context, data, new MessageListener() {
           @Override
           void onCallInvite(CallInvite callInvite) {
                 // Check state and process invite
                 if (callInvite.getState().equals(PENDING)) {
                     // Show notification to answer or reject call
                 } else if(callInvite.getState().equals(CANCELLED)) {
                     // Hide notification
                 }
           }

           @Override
           void onError(MessageException messageException) {
               // Invalid data was provided
           }
       });

       // Processing push messages in 3.X
       boolean handled = handleMessage(context, data, new MessageListener() {
           @Override
           void onCallInvite(CallInvite callInvite) {
               // Show notification to answer or reject call
           }

           @Override
           void onCancelledCallInvite(CancelledCallInvite callInvite) {
               // Hide notification
           }
       });

       if(!handled) {
           // This message is not a Twilio voice push message
       }

• Introduced call.getStats() method that returns a list of StatsReport with metrics for all the audio tracks in a call.

    call.getStats(new StatsListener() {
        @Override
        public void onStats(@NonNull List<StatsReport> statsReports) {
            // Process statsReports
        }
    });

Known issues

• CLIENT-5075 The SDK cannot be added alongside the Programmable Video SDK.
• CLIENT-5062 Calls made to a client or PSTN number that have a long duration before answering may not get connected.
• CLIENT-4943 Restrictive networks may fail unless ICE servers are provided via ConnectOptions.Builder.iceOptions(...) or AcceptOptions.Builder.iceOptions(...). ICE servers can be obtained from Twilio Network Traversal Service.
• CLIENT-4805 The SDK size is significantly larger than 2.x. A reduced size will be introduced during the beta period.
• CLIENT-4998 Network handoff, and subsequent connection renegotiation is not supported.
• CLIENT-2985 IPv6 is not supported.
• CLIENT-4698 Params that are passed to your TwiML Application while making calls are not URL encoded
• CLIENT-4547 Insights is not published
• CLIENT-4672, CLIENT-4673 Error codes 20157 and 20151 report different message and explanation text than Voice 2.0 SDKs
• CLIENT-4537 PCMU is the only supported codec. We plan on adding support for Opus moving forward. #117
• CLIENT-5242 Occasional native crash in AsyncTask of registration/unregistration and event publishing. The crash has only been observed on API 18 devices and results from a thread safety bug in Android. Similar crashes have been reported in the popular networking library OkHttp #1520 #1338. If this bug is impacting your applications, please open an issue on our quickstart and we will investigate potential fixes.

Library Size Report

3.0.0-preview2

August 27th, 2018

• Programmable Voice Android SDK 3.0.0-preview2 [bintray], [docs]

Enhancements

API Changes:

• Introduced CallState.RINGING
• Introduced a new callback method Call.Listener.onRinging(). This callback is emitted once before the Call.Listener.onConnected() callback when the callee is being alerted of a Call. The behavior of this callback is determined by the answerOnBridge flag provided in the Dial verb of your TwiML application associated with this client. If the answerOnBridge flag is false, which is the default, the Call.Listener.onConnected() callback will be emitted immediately after Call.Listener.onRinging(). If the answerOnBridge flag is true, this will cause the call to emit the onConnected callback only after the call is answered. See answeronbridge for more details on how to use it with the Dial TwiML verb. If the twiML response contains a Say verb, then the call will emit the Call.Listener.onConnected callback immediately after Call.Listener.onRinging() is raised, irrespective of the value of answerOnBridge being set to true or false

Known issues

• CLIENT-5075 The SDK cannot be added alongside the Programmable Video SDK.
• CLIENT-5062 Calls made to a client or PSTN number that have a long duration before answering may not get connected.
• CLIENT-4943 Restrictive networks may fail unless ICE servers are provided via ConnectOptions.Builder.iceOptions(...) or AcceptOptions.Builder.iceOptions(...). ICE servers can be obtained from Twilio Network Traversal Service.
• CLIENT-4805 The SDK size is significantly larger than 2.x. A reduced size will be introduced during the beta period.
• CLIENT-4998 Network handoff, and subsequent connection renegotiation is not supported.
• CLIENT-2985 IPv6 is not supported.
• CLIENT-4698 Params that are passed to your TwiML Application while making calls are not URL encoded
• CLIENT-4547 Insights is not published
• CLIENT-4672, CLIENT-4673 Error codes 20157 and 20151 report different message and explanation text than Voice 2.0 SDKs
• CLIENT-4537 PCMU is the only supported codec. We plan on adding support for Opus moving forward. #117
• CLIENT-5242 Occasional native crash in AsyncTask of registration/unregistration and event publishing. The crash has only been observed on API 18 devices and results from a thread safety bug in Android. Similar crashes have been reported in the popular networking library OkHttp #1520 #1338. If this bug is impacting your applications, please open an issue on our quickstart and we will investigate potential fixes.

Library Size Report

3.0.0-preview1

August 15th, 2018

• Programmable Voice Android SDK 3.0.0-preview1 [bintray], [docs]

This is the first WebRTC based release using Chromium WebRTC 57.

This SDK introduces ConnectOptions and AcceptOptions to allow developers to make behavioral changes associated with a Call.

This SDK allows multiple active Calls to be managed by the application.

Enhancements

API Changes:

• Migrated the enum PJSIP in LogModule to a more granular set of enums (CORE, PLATFORM, SIGNALING and WEBRTC)
• Introduced ConnectOptions to allow developers to make behaviorial changes associated with the call
• Migrated the API to make a Call from Voice.call(...) to Voice.connect(...)

// Making a call in 2.X
 Voice.call(context, accessToken, params, listener);

// Making a call in 3.X
ConnectOptions connectOptions = new ConnectOptions.Builder(accessToken)
            .setParams(params)
                    .build();
Voice.connect(context, connectOptions, listener);

• Migrated the API to accept a CallInvite using AcceptOptions

// Accepting a call in 2.X
CallInvite.accept(context, listener);

// Accepting a call in 3.X
AcceptOptions acceptOptions = new AcceptOptions.Builder()
            .build();
CallInvite.accept(context, acceptOptions, listener);

• Introduced call holding via Call.hold(boolean) feature
• Migrated Voice.setRegion(String) to ConnectOptions.Builder.region(String) and AcceptOptions.Builder.region(String)
• Migrated Voice.getRegion() to ConnectOptions.getRegion() and AcceptOptions.getRegion()

Known issues

• CLIENT-5075 The SDK cannot be added alongside the Programmable Video SDK.
• CLIENT-5062 Calls made to a client or PSTN number that have a long duration before answering may not get connected.
• CLIENT-4943 Restrictive networks may fail unless ICE servers are provided via ConnectOptions.Builder.iceOptions(...) or AcceptOptions.Builder.iceOptions(...). ICE servers can be obtained from Twilio Network Traversal Service.
• CLIENT-4805 The SDK size is significantly larger than 2.x. A reduced size will be introduced during the beta period.
• CLIENT-4998 Network handoff, and subsequent connection renegotiation is not supported.
• CLIENT-2985 IPv6 is not supported.
• CLIENT-4698 Params that are passed to your TwiML Application while making calls are not URL encoded
• CLIENT-4547 Insights is not published
• CLIENT-4672, CLIENT-4673 Error codes 20157 and 20151 report different message and explanation text than Voice 2.0 SDKs
• CLIENT-4537 PCMU is the only supported codec. We plan on adding support for Opus moving forward. #117
• CLIENT-5242 Occasional native crash in AsyncTask of registration/unregistration and event publishing. The crash has only been observed on API 18 devices and results from a thread safety bug in Android. Similar crashes have been reported in the popular networking library OkHttp #1520 #1338. If this bug is impacting your applications, please open an issue on our quickstart and we will investigate potential fixes.

Library Size Report

2.X

For older changelog entries including 2.x, click Changelog