[Asterisk-Users] Does anyone have faxes working well with X100P and TDM40B cards?

[Eric Wieling]

"show application dial"

On Tue, 2004-03-16 at 19:49, Jim Sneeringer wrote:
> Thanks so much.  This sounds encouraging.
> 
> I can't find a description of the "d" option. What does it do? Do I just put
> a "d" in the extension? Right now I have this:
> 
>   exten => fax,1,Dial(Zap/8)
> 
> and I'm envisioning changing it to 
> 
>   exten => fax,1,Dial(Zap/8/d${EXTEN})
> 
> Is that right?
> 
> -----Original Message-----
> From: asterisk-users-admin at lists.digium.com
> [mailto:asterisk-users-admin at lists.digium.com] On Behalf Of Jonathan Biggs
> Sent: Tuesday, March 16, 2004 6:55 PM
> To: asterisk-users at lists.digium.com
> Subject: Re: [Asterisk-Users] Does anyone have faxes working well with X100P
> and TDM40B cards?
> 
> Have a HP Officejet combo working OK with inbound fax detection, receiving
> faxes, and sending them using X100p and TDM400P, I just make sure I use the
> "d" option on the dial string, for outbound and also inbound on the FAX
> detection.
> have the "d" option on the internal fax redirection, and have setup 8 as
> outbound dialing for data calls (both modem and fax).
> 
> Did have problems when I had a mailbox configured on the line with the
> modem, seems the VMWI logic set line in a weird state the modem could not
> detect dial tone.
> 
> --- Jim Sneeringer <j at snee.us> wrote:
> > When I send or receive faxes with a modem, the faxes are stretched and 
> > have missing information.
> > 
> > Here are the things I have tried so far:
> > 
> >  - verified that the 2.4 GHz P4 is not overloaded
> >  - tried different Asterisk channels for both FXO and FXS
> >  - turned off echocancel
> >  - bumped up rxgain and txgain
> >  - tried different fax software (Windows vs. WinFax)
> >  - confirmed that everything works fine when
> >    the faxes are not routed through Asterisk.
> > 
> > One person told me I need ECM modems, but I don't have one to try and 
> > I can't see asking my customers to get new modems.
> > Also, what if the other end
> > of the connection doesn't have ECM? I would really like to get 
> > Asterisk to work with ordinary fax modems.
> > 
> > Why does Asterisk not work as well with fax modems as any other phone 
> > system?
> > 
> > Thanks.
> > 
> > Jim
> 
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-- 
For Asterisk PBX related documentation go to
http://www.digium.com/index.php?menu=documentation and look at the
"Unofficial Links" section also see
http://www.voip-info.org/wiki-Asterisk also see my site at
http://www.fnords.org/~eric/asterisk/

BTEL Consulting