title: Twilio SIP Trunking - RFC 3966 (tel uri)
body: <p>I have configured SIP trunking in twillio. It is working partially. Here is the scenario--</p>
  
  <p>Uesr dials the number cfgd in Twillio and the INVITE goes to our SIP AS via Originating trunk. Our SIP AS sends back 302(Moved temporarily) to Twillio with Contact header (<code>Contact: &lt;tel:+1xxx-yyy-zzzz&gt;</code>) configured as teluri. The phone number in teluri is also one of the twillio's number.</p>
  
  <p>Somehow Twilio didn't process 302 request from our SIP AS. Does Twillio supports RFC 3966 for tel uri? Appreciate any response. Thanks.</p>