> My outgoing FXO calls are answered but have no audio in 
> either direction if I have callprogress=no in 
> chan_dahdi.conf.  If I change to callprogress=yes then the 
> audio returns.  My chan_dahdi.conf file is listed below.  Can 
> anyone point-out why callprogress=no isn't working?
> 


I'm assuming your telco doesn't support line reversal on answer, you need to
set answeronpolarityswitch=no

Hope that helps


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