I am trying to create a sip endpoint to handle incoming calls from Twilio. The call procedure is: A uses traditional phone to dial one of my registered Twilio number, a TwimL message associated to the Twilio number will be called, where it sends a command to my sip endpoint. From the SIP invite message, I can receive user A’s phone number in the “From” field, but I wonder where can I also get my Twilio number? (say I have several Twilio numbers registered, and my sip end might need to response differently based on different numbers).
