asterisk users - Oct 2007 - White noise from TDM2400

Hello. We recently replaced a channel bank in favor of a TDM2400E. After doing 
so, users began complaining that they could barely hear the remote parties. 
We increased gain appropriately for each channel which increased the volume 
of the voices but has also increased the volume of any line noise. It sounds 
like white noise which goes away when either party talks and returns during 
silence. Is there any remedy to this? Thanks.

Stephen Kratzer
Network Engineer
CTI Networks, Inc.

Stephen Kratzer wrote:
> Hello. We recently replaced a channel bank in favor of a TDM2400E. After
doing
> so, users began complaining that they could barely hear the remote parties.
> We increased gain appropriately for each channel which increased the volume
> of the voices but has also increased the volume of any line noise. It
sounds
> like white noise which goes away when either party talks and returns during
> silence. Is there any remedy to this? Thanks.
Do you have the new TDM2400E with the VPMADT032 on it?  Also, what 
version of zaptel are you running?

-- 
Matthew Fredrickson
Software/Firmware Engineer
Digium, Inc.