3CX v18 Windows App

[oliverbiggs]

We have users working from home using the new Windows App (including myself), and it appears that the app requires extra ports open for audio to work. I have now logged a user trying to make a call and the app attempted to communicate to the PBX via UDP port 10520. This would appear to be in the RTP port range, but if the app is supposed to tunnel via port 5090, why is it trying to communicate via UDP 10520? Screenshot from our firewall attached.

 

[ClsVip]

Which app are you referring to? the new 3cx Desktop app or the 3cx app for windows (softphone)?

 

[oliverbiggs]

Which app are you referring to? the new 3cx Desktop app or the 3cx app for windows (softphone)?

Apologies, I'm referring to the new 3CX Desktop App.

 

[ClsVip]

Then this is webrtc (same as the WebClient), for audio, the RTP ports that will be used are the higher range of the RTP port range towards the PBX and random ports from the app. This does not use the 3cx tunnel only the 3cx app for windows (softphone) and mobile apps use the 3cx tunnel.

 

[oliverbiggs]

Then this is webrtc (same as the WebClient), for audio, the RTP ports that will be used are the higher range of the RTP port range towards the PBX and random ports from the app. This does not use the 3cx tunnel only the 3cx app for windows (softphone) and mobile apps use the 3cx tunnel.

Ah, I missed that somehow. That would make sense, thank you for the help!

 

[ClsVip]

Your welcome.

 

[Vas Proud]

Hi,

So I had this same issue and it really should be made more clear in the 3CX documentation - that the new v18 Windows App does not use the same ports or honour the 3CX Tunnel.

Took a while and some unhappy users to find that out - did anyone see it mentioned in the release notes?

Thanks

 

[VasilisV_3CX]

Hi @Vas Proud,

While not explicitly mentioned; granted, it does mention "We’ve packaged the web client as a native Windows app" implying that it works as the Web Client works.

Check the blog post: https://www.3cx.com/blog/releases/v18-alpha-5/