Poor connection via 3CX mobile even with stable internet

[Malyar]

Good afternoon.
Please help us resolve the issue of poor connection via the 3CX mobile app (iOS).
Even with a stable internet connection, the quality fluctuates. Some words may be garbled or disappear.
It looks like a poor connection. But the connection is actually stable—Wi-Fi or mobile internet (full coverage).
During a call, you can even see that the connection is poor (1-2 orange bars out of 3).
Here are our codec settings.

 

[Alejandro_3CX]

Hi, did you try enabling the call quality monitor to check what part of the call is presenting any connectivity issue

Please watch this video https://www.3cx.com/blog/docs/call-quality-tool/

Also I suggest you to use the order of the codecs below and make a test.

 

[SteveITS]

@Malyar Where is your 3CX hosted? The top section is for devices on the same network as the 3CX server. If "in the cloud" the second section applies to all devices.

Definitely try the tool above. I suggest matching your trunk codecs for the best result.