This is the problem I ran into. The crux of it is that TelecomsXChange sends the INVITE request to port 5060. which falls under the purview of pjsip, not sip. (At least it did on my system: Incredible 13-12.3.) Thus pjsip needs to be told about this IP address. Go to Connectivity -> Trunks -> Add SIP (chan_pjsip) Trunk Enter a Trunk Name, the SIP server (22.214.171.124), SIP Server Port (5060), and Context. Make sure "Permanent Auth Rejection" is checked so that pjsip doesn't retry Authenticates after the first failure. I also set Qualify Frequency to a large value (32000) to minimize the error messages in the log because that was broken on my system, and for good measure I set Maximum Channels (outbound) to zero. That's all I needed to do there. After establishing an Incoming Route for each DID, they all worked for me. Good luck!