smartphone app.

[Tom De Brouwer]

Hi all,

Since we began to use 3cx I get complaints about the sound quality in the smartphone app.
The quality is poor at times, and interruptions occur.

In our company every one has different smartphones, from apple to all sorts of android devices.
I myself use the android app on my galaxy S7, and I am not noticing any problems.

Since a few weeks there are 2 Iphone users, that got these issues again, but before it all worked like a charm.
These 2 only got quality issues when connected to Mobile services and not when connected to wifi… They sound like robots, but they can hear everything pretty clear.
The first thing we tested was the speed on them devices, but they had a download of +/- 100Mbps and an upload of +/- 60 Mpbs, so I don’t think speed is an issue.

So it is really hard to find a solution, I hope that one of you could help me out?

Cheers

 

[Vali_3CX]

For iOS client, 15.5.16 provides better audio and will be released soon.

 

[Tom De Brouwer]

OK thanks!
and which settings do you recommend?
for codex and phone provisioning

 

[Vali_3CX]

For 15.5.15 you cannot improve the quality, since the issue affects the audio processing.
However, for 15.5.16, the best audio quality should be provided by using G722 (which is 16KHz) - the worst is G729. You can go to More/Settings/Accounts/account_name/Audio Codecs and there manually change codec priority (or enable only one, if you like). Be careful, if you later perform a re-provision, your changes will be overwritten.

Also, keep in mind, audio quality is affected if PBX performs audio transcoding - like PBX delivers audio, record all calls or individual call recording are active.

P.S If you are a member of our Beta program, you can try 15.5.16.401