How to increase SIP Volume Gain Levels

[AlexShimmin (Alex S)]

Does anyone know how to increase the Gains on Asterisk for all SIP calls?
I’m aware you need to create a context with the TX and RX in it but I’ve tried a few things but no success :/…I think I just need to know what context name it’s needed to be under, like (from-internal) or something else.

Thnx

[comtech]

Look at this.

Apply Volume Gain to Extension

I have a legacy analog paging system I’m attempting to connect to FreePBX via a SIP Paging gateway. Unfortunately the audio output from my paging gateway is a bit too quiet and neither the gateway, nor the legacy system have a means of increasing the volume. The gateway registers as an extension on the system. Is there some way I can use the VOLUME() command in the dialplan to increase the gain for this extension? Would it be as simple as adding the following to extensions_custom.conf? [ext-l…

Not sure it is possible, have always defaulted to using the volume controls on the handsets or FXO gateways.