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Call Terminates on Mobile Device but Continues in the SDK App?

Question

My call on the mobile device has terminated, but it continues on SDK application. The call on SDK disconnects only when the user presses hangup/ call disconnect button. Why does this happen?

Product

Programmable Voice

Environment

legacy Twilio Console

Answer

Sometimes when carrier terminate the call, they do not inform Twilio by sending the appropriate SIP Signaling message. You may observe that the call terminates only if the SDK user hangs up via their application.

If you face this type of issue, please contact Twilio support with call examples and we will raise this issue with our carrier partner for further resolution.

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