This page will help to resolve the following audio issues:
...
Low volume
...
| Table of Contents |
|---|
...
Low Volume
If there are issues where the calling or called party hears the remote side too quiet, there is an option in chan_dahdi.conf (located in /etc/asterisk directory) where you can increase the gain in either direction.
...
Make your call that experiences the issue
Identify which port the call is on, that is having audio issues
Type the following command to disable the hardware echo canceller immediately:
wan_ec_client wanpipeX disable
replace X with the analog card number in question (typically this is '1')
if successful you will notice the following output
If you notice all the audio issue go away, please contact Sangoma support at support.sangoma.com
If there is no difference you can re-enable the hardware echo canceller via the following ways:
type: wan_ec_client wanpipe1 enable
restart wanpipe: wanrouter restart
...
If non of the above info has assisted, it is time to take an Audio trace to narrow in on the issue:
To take an audio trace please visit this link: Capture Audio Recording from card
If your Card has a hardware echo canceller, take a HWEC trace and a dahdi_monitor trace
If your Card does NOT have a hardware echo canceller, take only a dahdi_monitor trace
...