One way audio on mobile user

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3CX 16.0.8.9
Firewall Test - Pass

Good Morning

I've got an EXT using a Samsung Note 8 with the latest 3CX app as of today.

He's reprovisioned his profile.

He's running over EE's mobile data network (cant check wifi yet) but my colleague tested on the same network and he had no problem.

If I do an internal call to him, his audio is not coming back but mine is to him.

The 3CX has been restarted.

Echo test from his phone doesnt give him audio either.

I then created a CID to pass my number directly to him and I made a test call again.

This time when he answered I heard a noise but it wasnt him talking.

His microphone is working because he calls his office over GSM

SIP <----> 3CX



When I play the stream I dont hear either of us other then an awful noise.


Im assuming the darker colour is me actually talking but I cant play it?

If I set my 3CX app up and do the same call test it works fine.



Any ideas?

 

[Vali_3CX]

@kieferschild
Can you tell him to check in client Settings/Advanced if turning OFF the "Telecom API" option solves the audio problem? No restart needed, only turn it OFF.

I will need to know his exact model (like, for instance, SM-A205YN) and Android OS.
Thanks!

 

[Alphabetic]

@kieferschild
Can you tell him to check in client Settings/Advanced if turning OFF the "Telecom API" option solves the audio problem? No restart needed, only turn it OFF.

I will need to know his exact model (like, for instance, SM-A205YN) and Android OS.
Thanks!

Perfect, this has sorted it.

thanks for your help.

 

[MH_INDUS]

Hello @Vali_3CX,

a Colleague had the same issue on a Samsung Galaxy J3 (SM-J330F) running Android 9

 

[NickD_3CX]

Hello @Vali_3CX,

a Colleague had the same issue on a Samsung Galaxy J3 (SM-J330F) running Android 9

Can you tell us if when the turned the "Telecom API" option off, if this fixes the issue?

 

[MH_INDUS]

Yes, disabling Telecom API fixed the issue.