[Asterisk-Users] SIP UA Fax device

[Simon Woodhead]

Hi Dan,

Sounds like your needs are very similar to ours.

Hylafax will do all the fax>email etc. for you, no worries. If you get
yourself into a position to connect an analogue fax machine, be it via an
ATA186 or directly to a TDM400P on *, you'll be able to connect that into a
fax modem / fax modems on a Hylafax box.

Simon

----- Original Message ----- 
From: "Dan" <dtoma at fx.ro>
To: <asterisk-users at lists.digium.com>
Sent: Thursday, May 22, 2003 9:31 PM
Subject: Re: [Asterisk-Users] SIP UA Fax device


> Hi Simon,
>
> One option I think about. like you, is to use something like a Cisco ATA
186
> in SIP mode and a regular fax, but I want more, to receive the calls in
> electronic format and to automatically distribute them to some e-mail
> addresses.
>
> > We haven't tried
> > over the H.323. yet but will be doing so shortly.
> I think that it can work only with G.711 codec, no chance with some other
> low bandwidth like G.729 and/or G.723 or GSM. The protocol (H.323 or SIP)
is
> not so important as the used codec.
>
> I need to have an electronic fax machine (not paper based) connected to an
> extension of PBX, based on SIP.
>
> I want to be able to only receive faxes through the PBX, from an analogue
> line (X100P card) or an external IP call.
>
> Thank you and I'll keep you in touch with my progress.
>
> Best regards,
> Dan
>
> ----- Original Message -----
> From: "Simon Woodhead" <woodheads at gonegardening.com>
> To: <asterisk-users at lists.digium.com>
> Sent: Thursday, May 22, 2003 9:00 PM
> Subject: Re: [Asterisk-Users] SIP UA Fax device
>
>
> > Hi Dan,
> >
> > If you find one please let me know although we've had no success looking
> for
> > such a thing ourselves. Our experience to date in looking might be of
some
> > use to you though...
> >
> > We're trying to replace BRI lines with a H.323 connection to a telco
over
> > our leased line. Faxes remain one of the problem areas. Logic says that
> > since faxes and modem were designed to send data over existing analogue
> > voice channels that it should be possible to send them over VoIP
channels
> > but searching the archives for this list and elsewhere suggests
otherwise.
> > Apparently because the data is being modulated and then demodulated
> > repeatedly through the various layers and VoIP is lossy it won't work.
The
> > solution seems to be T.38 fax relay although asterisk doesn't support
it.
> >
> > We're playing with Hylafax (www.hylafax.org), an open source fax server.
> You
> > might get lucky asking around there for SIP support but to my knowledge
it
> > only supports hardware modems. For us, we're looking at setting up
> asterisk
> > extensions on a TDM-400P and then looping a physical wire into fax
modems
> on
> > a neighbouring machine. We've tested this with * dialling out and
> answering
> > existing ISDN channels and forwarding to/from a normal fax machine and
it
> > works perfectly.
> >
> > IP wise, as I mentioned, we want to ditch the ISDN and use our H.323
> > connection. We have two *s in different countries talking to each other
by
> > IAX. Despite what the archives say, we have been able to send faxes from
> > analogue fax machines connected at each end (or dialling in/out to one
> end)
> > over a voice channel in between with no problems at all. We haven't
tried
> > over the H.323. yet but will be doing so shortly.
> >
> > I don't know which side of * you need the SIP connection but what works
> over
> > the net shouldn't struggle on a LAN. On the basis of our limited
> experience
> > so far, IP to outside seems to work fine and LANside you can either
> > physically connect a fax modem to * or hook up something like an ATA186
to
> a
> > fax machine/fax-modem.
> >
> > I hope this is of some help and look forward to hearing how you get on.
> >
> > Cheers,
> > Simon
> >
> > ----- Original Message -----
> > From: "Dan" <dtoma at fx.ro>
> > To: <asterisk-users at lists.digium.com>
> > Sent: Thursday, May 22, 2003 9:10 AM
> > Subject: [Asterisk-Users] SIP UA Fax device
> >
> >
> > > Hi,
> > >
> > > Anyone knows a software fax device which can act as a SIP UA?
> > > I want to have a SIP based FAX machine (sofware) on a PC associated
with
> > an
> > > Asterisk extension.
> > >
> > > Thanks,
> > > Dan
> > >
> > >
> > > _______________________________________________
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> > > Asterisk-Users at lists.digium.com
> > > http://lists.digium.com/mailman/listinfo/asterisk-users
> > >
> >
> >
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> >
> >
>
>
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