Voice Insights Dashboard
The Insights Dashboard is a powerful aggregation tool that allows users to filter on specific dimensions like call type, timeframe, number prefix, country code, and automatically updates the data visualizations to take into account the filter criteria. Key sections of the Dashboard include the total number of calls placed on Twilio, the average length of those calls, who hung up, call completion rate (ASR), calls with high PDD, and calls whose quality performance may have been impacted by network conditions. Call data can be visualized in a number of ways for each metric, and calls can be exported to .csv.
The user experience of voice communication is measured by two key components - call connectivity and audio quality. Connectivity issues can originate from the user’s handset, the last mile link between their phones and the cell tower, their carrier network, or from within Twilio’s network. Congestion, spotty coverage, handoff failures and numerous other issues could prevent you from reaching your users, or cause connected calls to drop. Voice Insights Connectivity dashboards enable you to rapidly identify connectivity problems by giving you real-time visibility into four key metrics:
- Connection Rate: The percent of total calls that reached the destination. Canceled and failed calls are excluded from this calculation.
- High Post Dial Delay (PDD): Calls where the number of seconds elapsed between dialing the last digit of the phone number and the start of ringing exceeds local thresholds. High PDD can sometimes be reported as "dead air", "one way audio", or even "dropped calls".
- Network Affected: Percentage of calls adversely affected by poor network quality. Issues that indicate poor network quality include: packet loss, jitter, and latency.
- Who Hung Up: Breakdown of calls in which the SIP BYE message was received from the caller or callee. The BYE message signals the termination of an answered call. Calls that have not been answered will not have a BYE, so they will be excluded from the results.
Start by selecting the filters as shown below.
1. Account View Selection: Parent Account Only. Allows for toggling between Account and Subaccount Dashboards.
2. Time Range Picker: Choose from the various call types that can occur on the Twilio platform.
3. Filter Builder: You can narrow down the metrics you are viewing by choosing to view the data for a specific phone number, number prefix, country, device type, and users' carrier network. The applicable values are listed below.
|To Phone Number||The phone number of the called party|
|From Phone Number||The phone number of the calling party|
|To Client Name||Registered Client name of the called party; e.g.
|From Client Name||Registered Client name of the calling party; e.g.
|Verified Caller||True/false. True indicates the caller ID has been received SHAKEN/STIR attestation value of A. Any other value, or absent attestion will be false.|
True/false. True indicates that the branded call details were successfully presented to the called party. False indicates that the branded call details were provided, but not successfully presented.
|Branded Call Caller||
Brand name caller ID provided during Branded Call creation.
|To SIP URI||SIP URI of the called party; e.g.
|From SIP URI||SIP URI of the calling party; e.g.
|To Carrier||The carrier of called party|
|From Carrier||The carrier of the calling party|
|To Country Code||
ISO Alpha-2 country code of the called party
|From Country Code||
ISO Alpha-2 country code of the calling party
|To Device Type||
Landline, Mobile, or VoIP connection of the called party
|From Device Type||
Landline, Mobile, or VoIP connection of the calling party
|To Number Prefix||Country code and area code or exchange for the called party|
|From Number Prefix||Country code and area code or exchange for the calling party|
|SIP Response||The last SIP response code received in the dialog.|
|Call State||The final call status.|
|Network Affected||Carrier, SIP, or Trunking calls tagged with jitter, packet loss, or latency.|
|Network Affected (SDK)||Voice SDK calls tagged with jitter, packet loss, or latency. Twilio Voice SDK calls only.|
|To SDK Version||Twilio SDK version number. Twilio Voice SDK calls only.|
|From SDK Version||Twilio SDK version number. Twilio Voice SDK calls only.|
|To Client Registration Region||The Twilio region where the Client was registered. Twilio Voice SDK calls only.|
|From Client Registration Region||The Twilio region where the Client was registered. Twilio Voice SDK calls only.|
|Edge Location (Region)||The media region where the Twilio gateway handled media.|
|Client IP Address||The IP address of the Client user. Twilio Voice SDK calls only.|
|Call Direction||The type of call and associated direction: inbound, outbound API, outbound <Dial>, trunking originating, trunking terminating.|
|Silence Detected||True/false. True indicates Twilio detected silence on one of the media streams for the call. Depending on your use case, silence may be expected; e.g. one-time password delivery.|
Our trends graphs show comparisons of call volume and average length of call (ALOC) for the selected time frame. Call volume and ALOC are classic telecom metrics and changes in these should be investigated closely; for example, a very common pattern when a quality problem is introduced is the number of calls to increase, while the ALOC goes down. This is due to people being unsatisified with the quality of their experience, ending the call early, and placing another call (or calls) in an attempt to get an acceptable experience. You can also select-to-zoom on these graphs for greater detail.
|Total Calls||Total number of Twilio calls made from this account over the selected date range.|
|Average Length of Call||Sum of duration of all calls divided by the total number of completed calls made from the account.|
Connection Rate allows you to filter by call state.
The Voice Insights account-level dashboards provide trends on the following metrics:
|Who Hung Up||
Who disconnected the call, based on the direction of the SIP BYE event. Percentage is calculated based on the total number of errors with respect to the total calls.
|Connection Rate||Total calls completed with respect to the total number of calls. Documentation for the applicable call status values is here.|
Post-dial-delay (PDD) is the number of seconds elapsed between dialing the last digit of the phone number and the start of ringing.
The tab represents percentage of total calls with high Post-Dial-Delay (PDD), compared against 99th percentile of all Twilio calls to the destination country.
This tab shows percentage of calls adversely affected by poor network quality. Issues that indicate poor network quality include packets arriving out of order (jitter), never arriving (packet loss), and taking a long time to arrive (latency). For Carrier and SIP/Trunking call types, high packet loss is defined as 5% cumulative packet loss, high jitter is defined as average jitter of more than 5 milliseconds, and high latency is defined as Twilio-internal RTP traversal time of greater than 150 milliseconds. For SDK calls high jitter is defined as 30 milliseconds or higher for 3 out 5 consecutive samples, and high packet loss at 1% or higher for 3 out of 5 consecutive samples.
Who Hung Up
|Who Hung Up Values||Description|
|Caller||The BYE message was received from the "From" number|
|Callee||The BYE message was received from the "To" number|
|Error||A SIP error code was received on the call. The count is based on the total number of server or global errors seen.|
Call Logs View
The call logs view helps you drill down into a subset of calls with specific issues. To get to the call logs, click on the phone icon towards the right of the screen as shown below. Up to 2000 results can also be exported to a comma-separated value file.
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