3CX internal calls quieter than external calls

[rhys100]

Calls seem to be 30% quieter than external calls.

I have set PBX delivers audio on all extensions, all extensions are set to PCMU as first priorty.

We have a 200/200mb/s link with 2ms delay and all handsets are Yealink T48G

Is there a way to increase volumn on internal or check why we are having this issue?

 

[Panayiotis_3CX]

Hello @rhys100,

You can check in the phone's web interface if there is an option to increase the microphone volume.