Solved No audio 3CX Desktop App and Web Client

[Jakob]

Hi,
after rolling out the 3CX Dektop App for Windows we experience some audio issues.

In the office -> Desktop App is working with no issues

In other networks:
- Sometimes Desktop app is working fine
- Sometimes we have no audio after a succesful establishing of the call itself

The firewall checker is finding no errors.

The issue sounds very related to this one:
https://www.3cx.com/community/threads/sound-issue-with-3cx-desktop-app-v18.113367/#post-524348

I appreciate your support - please let me know what other information you need.

Thanks and regards!

 

[ChrisC_3CX]

Hey @Jakob

The cause of the issue for the linked case was that the firewall configuration was not implemented for the full port range used for WebRTC(UDP 10500 - 10999) and was instead only configured for 10600 and above which is more or less what the firewall checker tests. With a config like this, the firewall will pass (because it does not test the entire range of ports) but audio on many webclient/desktop app calls will fail.

Can you check your firewall configuration and confirm this is not the case? To be honest if locally you have no issues then the possibility of this being a firewall configuration related issue is very high.

 

[Jakob]

Hi Chris,
Thanks for your reply.
After adjusting the port range as described by you it seems to work without any issues.

Thank you!!!

Case can be closed.

Regards!

 

[VasilisV_3CX]

Glad to hear it @Jakob, feel free to open a new thread if you need anything else!