asterisk users - Sep 2005 - Re: [Asterisk-biz] Problem with sending fax from a SIP extension

1. Search the archives
2. Search again
3. Now search the internet
4. The fact is that faxing over VoIP without T.38 doesnt really work.
Because it works 60% of the time it doesn't mean that it works, until
it works 99% of the time.
Since Asterisk does NOT support T.38 it doens't support faxing over
VoIP other solutions are available, search the wiki.


On 9/26/05, Mark Armstrong <marmstrong@accaustralia.com.au>
wrote:
> I am having exactly the same problem.  Any information would be
appreciated.
> Faxing is a commercial proposition that my team is working on, any
> limitations of Asterisk or E1 cards needs to be highlighted.
>
>
> Regards
>
> Mark
>
>
> ACC Australia
> Phone: 02 9489 0544
> Fax: 02 9489 0522
> Mobile: 0401 286 686
>
> www.accaustralia.com.au
>
>
>
>
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> -----Original Message-----
> From: asterisk-biz-bounces@lists.digium.com
> [mailto:asterisk-biz-bounces@lists.digium.com] On Behalf Of C F
> Sent: Tuesday, 27 September 2005 9:42 AM
> To: andy@akuo.ca; Commercial and Business-Oriented Asterisk Discussion
> Subject: Re: [Asterisk-biz] Problem with sending fax from a SIP extension
>
> why don't you post this to asterisk-users?
>
> On 9/22/05, Andy Kuo <akuoca@gmail.com> wrote:
> > Hi All,
> >
> > I'm having problem sending fax from SIP extensions (Linksys PAP2)
> > through Asterisk Zap channels (ISDN PRI).
> > The SIP extensions can receive fax without problems, but sending fax
> > fails most of the time.
> >
> > Does anyone have this problem?
> >
> > Please advice.
> > Thank you.
> > AK
> > _______________________________________________
> > Asterisk-Biz mailing list
> > Asterisk-Biz@lists.digium.com
> > http://lists.digium.com/mailman/listinfo/asterisk-biz
> >
> >
> >
> _______________________________________________
> Asterisk-Biz mailing list
> Asterisk-Biz@lists.digium.com
> http://lists.digium.com/mailman/listinfo/asterisk-biz
>
>
>
>

On 9/27/05, C F <shmaltz@gmail.com> wrote:
> 1. Search the archives
> 2. Search again
> 3. Now search the internet
> 4. The fact is that faxing over VoIP without T.38 doesnt really work.
> Because it works 60% of the time it doesn't mean that it works, until
> it works 99% of the time.
> Since Asterisk does NOT support T.38 it doens't support faxing over
> VoIP other solutions are available, search the wiki.
>
>
> On 9/26/05, Mark Armstrong <marmstrong@accaustralia.com.au> wrote:
> > I am having exactly the same problem.  Any information would be
appreciated.
> > Faxing is a commercial proposition that my team is working on, any
> > limitations of Asterisk or E1 cards needs to be highlighted.
> >
> >
> > Regards
> >
> > Mark
> >
> >
> > -----Original Message-----
> > From: asterisk-biz-bounces@lists.digium.com
> > [mailto:asterisk-biz-bounces@lists.digium.com] On Behalf Of C F
> > Sent: Tuesday, 27 September 2005 9:42 AM
> > To: andy@akuo.ca; Commercial and Business-Oriented Asterisk Discussion
> > Subject: Re: [Asterisk-biz] Problem with sending fax from a SIP
extension
> >
> > why don't you post this to asterisk-users?
> >
> > On 9/22/05, Andy Kuo <akuoca@gmail.com> wrote:
> > > Hi All,
> > >
> > > I'm having problem sending fax from SIP extensions (Linksys
PAP2)
> > > through Asterisk Zap channels (ISDN PRI).
> > > The SIP extensions can receive fax without problems, but sending
fax
> > > fails most of the time.
> > >
> > > Does anyone have this problem?
> > >
> > > Please advice.
> > > Thank you.
> > > AK
I have a fax connected to a zaptel pci card (FXS).  Fax are sent right
into an FXO card connected to my PSTN.   I don't experience problems
but then again I am a light user.
Just out of curiosity, is the problem related to sending FAX via IAX
or SIP to another asterisk server?
if asterisk will support T.38 passthru to say Hylax Fax, does that
mean I need a Hylax fax daemon in every asterisk server?