proxy authenticaion

  1. Proxy Authentication on HOLD creates problems on SIP TRUNK

    Hello All, We are trying to connect an external application to the 3CX PBX using SIP TRUNK. When the app makes a call to the 3CX PBX, it sends (of course) an INVITE command to the PBX. The 3CX PBX responds with a PROXY AUTHENTICATION request. That's OK, of course, and the app responds with the...