No Audio on Apps or Web Client

[CSPJD]

Hi All

I hope you can assist with the following issue.
Currently we have a 3CX server hosted in the cloud with Azure. We have a sip trunk with the local provider and can confirm that we can make and receive calls on this trunk with my IPPhone(Yealink T23, provisioned with 3CX) and my android 3cx app.
However, when we try and make the same call on the Web App or Windows App, the call is established but there is no audio on either side of the call.

Please note both clients are on the same network. No firewall issues. 3CX firewall check comes up with no issues. Codecs have been checked.

When looking at the SIP invites on the activity log, we notice that the SDP field specifying the RTP is pointing to a loopback address(127.0.0.1)
Non Working Windows App
o=3cxVCE 18446744071688679928 18446744071606089015 IN IP4 127.0.0.1
s=3cxVCE Audio Call
c=IN IP4 127.0.0.1

----------------------------------------

Working 3CX Android app
o=- 3854631376 3854631376 IN IP4 10.10.12.54
c=IN IP4 10.10.12.54

Any assistance would be appreciated

 

[VasilisV_3CX]

Hi @CSPJD,

Can you test an extension to extension call from a different network? For example if you make 2 test extensions and test them on your own network, using your own equipment. Do you have the same problem?

If you dial *777 from the extensions that have the audio problems in the Web Client / Desktop App, do they hear themselves?