Intermittent SIP 400 Bad Request failures between Twilio SIP Trunk and OpenAI gpt-realtime (calls never reach webhook)
Summary The intermittent SIP 400 Bad Request failures between Twilio SIP Trunk and OpenAI gpt-realtime have caused a significant increase in failed calls, with no apparent configuration changes on Twilio, OpenAI, or the application. The successful calls work as expected with the same configuration, and the issue seems to be specific to the Twilio ↔ … Read more