[Asterisk-Users] PSTN calls are quiet

[Paul Goodyear]

Sip to sip calls are fine, both local on Asterisk and over a SIP
gateway, however some people who call on the PSTN line say we are very
queit and vice versa, can the volume be turned up on the PSTN line?

The volume buttons on the VoIP phones only turns up the others voice,
so this is a fix for us, but how do I make our voices louder for the
people on the PSTN line?

Thanks.

Paul.