we have below setup:
PBX<--->SIP Trunk<--->(LAN)Adtran(WAN)<-->SIP Trunk<-->SIP Service Provider(Third Party).
when i am sending Invite to Adtran, it is not forwarding it to sip service provider. it is returning it back to PBX.
Can you please help me on this. where is the problem.
Attaching Adtran Configuration in text file. Thanks.
also, the above issue only i am facing when i try to make outbound call but for inbound call i.e call which is coming from outside to PBX via adtran is not having any issue.
Do you have to register or authenticate to Telus on your SIP trunk?
Can you enter the following debug and then try placing an outbound call
Debug sip stack messages
Debug voice verbose
Debug sip cldu
Put the debug in a text file and attach it like you did your config.