Wow, this takes me back. It's been forever. I did find this, but it is older, zaptelish: http://www.mattgwatson.ca/2008/05/howto-tune-zaptel-dahdi-fxo-interfaces-on-... Hope it helps... -MC On Tue, May 25, 2010 at 5:00 PM, Troy Anderson <troy@tlainvestments.com>wrote:

Ok, I'm googled out! Can anyone point me to some docs on how to set the rx and tx gain for an FXO or FXS channel using dahdi and mod_openzap? I think it goes into /etc/dahdi/system.conf, but can't find any docs on how or where.

My /etc/dahdi/system.conf looks like this:

loadzone=us defaultzone=us fxsks=1 fxsks=2 fxsks=3 fxsks=4 fxsks=5 fxsks=6 fxoks=7 fxoks=8

Thanks! -Troy

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