Help Center

Twilio Basics

General

• What is a good example of a Twilio application?
• What can I build with Twilio?
• Do you have any pre-built applications using Twilio?
• What languages can I use to write Twilio applications?
• I’m not a developer, what can I do with Twilio?
• What can’t I build with Twilio?
• Do you support fax?
• How does Twilio’s Free Trial work?
• What is the Auth Token, and how can it be reset?
• How does the Twilio Sandbox number work?
• Can I change my phone number during the free trial?
• Can I see all the support tickets created by other users within my account?

Application Configuration

• How do I configure a phone number to receive phone calls or SMS messages?
• What is an application SID?

Accounts

• What is a subaccount?
• Do subaccounts support international calls and SMS messaging?
• How do I cancel my account?
• How do I close a subaccount?
• Where are my subaccounts?
• Where are my test credentials?
• How can I change the email address for my account?
• How can I create a subaccount?
• What’s the difference between Owner, Administrator, Developer and Billing Manager?
• Can I change the owner of the account?
• Can I change the name of my account?
• Can an account have multiple account owners?
• How do I add users to my account?
• I or my user didn’t receive an invitation, what do I do?
• Can I have access to multiple accounts?
• How do I remove a user from my account?

Technical Questions

• Which IP addresses will Twilio’s requests come from?
• How can I see my Twilio data?
• How do I export my SMS/Call Logs?
• What are the limits on outbound calls and SMS messages per-second?
• Can I test Twilio’s REST API within my application without actually making the request?
• How many calls and SMS messages per second can my Twilio account make?
• What are the Priority Levels for support tickets?
• What are Twilio’s business hours for support?
• How can I make my Twilio application more fault tolerant?
• Does Twilio maintain Do Not Call lists?
• Does Twilio have a list of IP addresses which requests might come from?