Twilio Voice SDK Call Message Events: User-Defined Messages is now in Public Beta

The Twilio Programmable Voice SDKs now offer the new Call Message Events: User-Defined Messages and User-Defined Message Subscription resources for application developers. This first release, available in Public Beta on the latest major versions of Voice JS and iOS SDKs, supports relaying custom events to and from your backend to a registered Voice SDK Client on established calls - all within the Twilio platform. This unlocks a host of advanced use cases, including:

• Relaying (and taking action on) call progress events
• In-line text transcriptions
• Upgrading 2-party call to multi-party via Voice Conference
• Present valuable context in your application at the right time

Check out the docs for more information on how to use the new Call Message Events: User-Defined Messages functionality in your application. We can’t wait to see what you build!