SILENT CALLS ON SIP 3CX

[Preston]

I have setup a SIP trunk on 3CX V15 and the calls are going though. The problem is this calls are silent. What could be the issue? Kindly assist.

 

[leejor]

There could be a number of reasons...ports, Codecs. Did the problem just start, or is this a new set-up? Have you successfully run the 3CX Firewall Checker? if this was working properly...were there changes made to any hardware, or firmware? Have you looked at the 3CX Activity Log for any errors? What is the set-up...hosted, SBC, STUN, all local?

 

[pmterp]

If you haven't already, try enabling "PBX delivers audio" in the trunk and extension settings.

 

[Preston]

If you haven't already, try enabling "PBX delivers audio" in the trunk and extension settings.

This is enabled but calls are still silent

 

[JohnS_3CX]

Hi Preston,

I would start with what @leejor said and see if you can figure it out. If not then now would be a good time to run a capture and use WireShark to analyze the traffic and see what's going on.

 

[Preston]

There could be a number of reasons...ports, Codecs. Did the problem just start, or is this s new set-up? Have you successfully run the 3CX Firewall Checker? if this was working properly...were there changes made to any hardware, or firmware? Have you looked at the 3CX Activity Log for any errors? What is the set-up...hosted, SBC, STUN, all local?

It is a new setup, everything is local. There are no errors on the logs

 

[pmterp]

Did the firewall checker run successfully?
You can also enable call recording on an extension and make a test call to see if your issue is with the trunk or the extension.