[asterisk-users] About FAX and PAP2

Lukas lukassky at gmail.com
Thu Mar 22 19:03:11 MST 2007


Yeah, I know. but the issue is that i receive a Fax throw a mISDN
channel , and the i'm trying to send it out a SIP extensions that it's
outside from the LAN where the AsteriskPBX is. Maybe NAT or something
like that? Voice call works.


El jue, 22-03-2007 a las 17:24 -0700, Kevin P. Fleming escribió:

> Lukas wrote:
> >     Hi. I've just configured a PAP2 where i wanna receive faxes, but i
> > don't know how to disable echo-cancel option only in a misdn channel,
> > 'cause i need it for the voice calls but not for faxes. I've just read
> > that it's so necessary to set it up with no echo-cancel support. isn't
> > it? I'm so lost about it. Thanks.
> 
> All decent echo cancelers will disable themselves when notice a FAX
> call, because FAX machines generate the proper tones for this to happen.
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