No audio but echo test working

[marche]

When using LTE of my primary carrier, I can place echo test calls to the PBX and can hearmyself, but when I call extensions or other numbers there is no audio (ACK does return, the call lasts more than 30 seconds). But when I use another carrier, both the echo test and calls to extensions work without any issues (so it is not a codec issue as I first suspected). So how come using my primary carrier the echo test work but calls to extensions dont? (The extensions are in the same LAN as the PBX).

 

[JohnS_3CX]

Can you be a bit more specific? LTE can mean you are using the Android/iOS app or that you hooked up a VoIP phone to an LTE modem, and acting as a remote extension.

Go ahead and read this post please and provide full information about your setup and scenario so we can better understand the case https://www.3cx.com/community/threads/information-to-provide-when-requesting-help.67558/

 

[leejor]

My first guess, would have been a Codec issue as well. Does the 3CX Activity Log show any sort of error? Any difference, in the logs, of a working. and non-working call?