[asterisk-users] Problem with ReceiveFax

[Ishfaq Malik]

On Mon, 2012-03-12 at 14:53 +0000, Ishfaq Malik wrote:
> On Mon, 2012-03-12 at 09:11 -0400, Bryant Zimmerman wrote:
> > Looking at the information you have sent in this posting in certainly 
> > appears that the 'f' option has indeed helped however you have
> > another 
> > matter to overcome.
> > 
> > You may wish to set the following parameters in your peer
> > configuration 
> > for 588.
> > 
> > ignoresdpversion=yes
> This one passed me by, thanks for the info
> > directmedia=no
> > 
> > I use Spandsp FAX successfully.
> > 
> > I have also attached an analogue Fax Modem to the FXS port on an
> > SPA8800 
> > and an HT-502 and have been able to receive faxes on them when I last 
> > tested, the SPA8800 like the HT-502 are now in storage.
> > 
> > Looking at the User Guide for the Vigor 2701 there is an option in
> > the 
> > configuration to enable T.38 mode, did you enable it?
> Foolishly I hadn't and feel very stupid about that!
> > 
> > 
> > In my sip.conf I have the following;
> > 
> > [general]
> > .
> > .
> > .
> > faxdetect=cng
> > t38pt_udptl=yes,redundancy,maxdatagram=400
> tried this and ,fec,
> > ;t38pt_usertpsource=yes
> had this already set
> > .
> > .
> > .
> > [903]
> > ; Cisco SPA8800 FXS Port 3
> > ; Grandstream HT502 FXS Port 1
> > ; Analogue FAX Modem attached
> > type=friend
> > defaultuser=903
> > secret=you_guessed_it
> > call-limit=2
> > disallow=g722
> > transport=udp
> > qualify=yes
> > canreinvite=no
> > directmedia=no
> > host=dynamic
> > context=FAX-T38
> > faxdetect=no
> > 
> > Larry.
> > 
> > 
> > 
> It's still not working but not throwing any errors at all. I've checked
> that the fax machine itself works (actually hoping that it wouldn't and
> that would explain my problem) by plugging it into a phone line and it
> does.
> 

Does anyone know if these settings are correct and if not, how to change
them?

CLI> fax show settings
FAX For Asterisk Settings:
	ECM: Enabled
	Status Events: On
	Minimum Bit Rate: 2400
	Maximum Bit Rate: 14400
	Modem Modulations Allowed: V17,V27,V29


FAX Technology Modules:

DIGIUM (Digium FAX Driver) Settings:
	Maximum T.38 Packet Delay: 800
	T.38 Session Packet Capture: Off
	G.711 Session Audio Capture: Off

Ish

-- 
Ishfaq Malik
Software Developer
PackNet Ltd

Office:   0161 660 3062