1 way sound on 3cx app installed on Android9 (or lower I think)

[VUSALDADASHOV]

hello dear forum gurus

I have a question

I have latest 3cx on premise server on debian (ESXI VM) which works fine either locally or outside the office. Calls go, everyone is happy

But as it turned out, I have 1 way audion on Android 9 devices. Every device that have Android 9 installed, have 1 way audio issue
iPhobes, Android 10 & 11 works great. No issue
Excep ndroid 9 (8 as well I think but I couldn't test yet)

Can someone point me in right direction to fix that issue?

 

[Evolute IT]

hello dear forum gurus

I have a question

I have latest 3cx on premise server on debian (ESXI VM) which works fine either locally or outside the office. Calls go, everyone is happy

But as it turned out, I have 1 way audion on Android 9 devices. Every device that have Android 9 installed, have 1 way audio issue
iPhobes, Android 10 & 11 works great. No issue
Excep ndroid 9 (8 as well I think but I couldn't test yet)

Can someone point me in right direction to fix that issue?

Have you tried enabling "Telecom API" in the app settings?

Also, verify codecs.

 

[VUSALDADASHOV]

U mean Audio Subsystem API in advanced settings of the app?

 

[VUSALDADASHOV]

There is no Telecom API option in 3cx App, only Audio Subsystem API