This version of the SDK no longer supports processing cancel push notification messages. You must register via Voice.register(...) on Android or [TwilioVoice registerWithAccessToken:deviceToken:completion:] on iOS with this version of the SDK to stop receiving cancel push notification messages. Cancellations are now handled internally and reported to you on behalf of the SDK.
The identity associated with the Twilio Voice SDK is still registered to receive cancel push notification messages.
The application must register via Voice.register(...) on Android or [TwilioVoice registerWithAccessToken:deviceToken:completion:] on iOS to stop receiving cancel push notification messages.