iOS and Android no Audio

[MartijnDoeland]

Suddenly our Android & iOS clients are experiencing problems with audo. The audio from the caller doesn't always come thru anymore.
If I place the call then I have a dialtone but as soon as the Callee picks up there's no audio.

Windows 10 softphone client on same netwerk has no problem.
Tested myself on Wifi & 4G with latest Android client on Huawei p-Smart (android 8.0.0).
Reported on iPhone 8 using latest iOs.

 

[craigreilly]

Windows 10 on same network as PBX? And WiFi or Hardline on Win10? I am assuming PBX is local to the WiFi network the devices are on?
Have you tried sending a new registration profile to the phone?

 

[MartijnDoeland]

Windows 10/Wifi is same network, but not local

iOs on local Wifi

 

[MartijnDoeland]

According to our network engineer the Windows client does not add a QOS flag to the traffic.
We are going to research the android and ios App to see if the flag is added.
This is a major problem for reliable traffic between the clients and server.

 

[complex1]

Hi,

Do all tests passes the firewall checker?

Do Echo test (*777) runs successful both on local WiFi as on 4G?

 

[MartijnDoeland]

Yes all tests pass.
the clients drop audio after approx 30 s.

 

[complex1]

If you sometimes have no audio and/or the call drops after 30s or so, then you have probably a issue with a router somewhere.

Please check your configuration and check if the right ports are open.

 

[MartijnDoeland]

Problem currently solved.
Turned out te be something very complicated with On-demand VPN and firewall rules.