### Answer --- I don't have specific documentation about a

twilio-sms-webhook/org_...

endpoint or its intended use from a backend. Based on the available sources, here's what I can share about SMS integration approaches: For Retell Twilio Numbers: - Two-way SMS is set up by attaching chat agents to a number [(1) ]() - For outbound SMS, you can use the [Create Outbound SMS API]() to programmatically send messages - Inbound webhooks can be configured to filter and add context to inbound SMS For Your Own Twilio Number: - You can integrate it with Retell by providing your Twilio Account SID and Auth Token in the dashboard - Enable

useInboundWebhookOnNumberCalled

for two-way SMS conversations If you're trying to send SMS programmatically from your backend, the documented approach is to use Retell's Create Outbound SMS API or Twilio's native SMS API directly. Could you clarify what you're trying to accomplish? That would help me point you to the right approach. Check out these potentially useful sources: - [Send & receive SMS]() - [Create Chat Completion]() - [Inbound webhook]()

​ To learn more, see the sources I considered: [[1] Send & receive SMS](https://docs.retellai.com/deploy/enable-sms) ​

Feel free to tag @AI Evy with additional questions. I also appreciate feedback, it helps me improve.