Low Volume

[njmsa]

I have several clients complaining about low volume. 3CX instances are running in the cloud (Azure) and we're using the G729 codec. Handsets range from Yealink Desktop and Cordless to users using the App on their mobile handsets (Android & iOS). So far everyone is complaining. Please help?

 

[AWS2P]

have you tried other audio codec than G729 ? is it prefered codec expected by sip Provider?

 

[njmsa]

have you tried other audio codec than G729 ? is it prefered codec expected by sip Provider?

Yes G729 is the preferred codec of my SIP Provider. What's concerning is that when I used the same trunk in the same network with the same handsets but using a different CloudPBX (Yeastar) - I never had this complaint (low audio). That's why I'm thinking that 3CX is the culprit here...?

 

[SteveITS]

We haven't heard of this, but I did see thread https://www.3cx.com/community/threads/various-user-complaints-after-16v5-update.72833/. We have G.711 U-law as the preferred codec.

 

[Waddy]

I had this with G722 and went to G711 = fixed. If you are able try using G711 and see if it makes a difference. Just do it on a couple of phones for internal calls first maybe.