Try open souce solution "ICTFAX" for T.38 faxing developed by us available at http://www.sourceforge.net/projects/ictfax
Nasir Iqbal ICT Innovations http://www.ictinnovations.com/ On Sat, Sep 4, 2010 at 3:03 AM, Joel Maslak <[email protected]> wrote: > g711 across a network without perfect jitter/delay characteristics will not > work. > > You cannot do g711 faxing across the internet - at all. > > It's not a perfect solution even in an office on a dedicated LAN > environment (you'll still get failed faxes). > > > On Fri, Sep 3, 2010 at 12:32 PM, dave george <[email protected]>wrote: > >> Thanks Kevin, >> >> I tried passing it over VOIP using g711U codecs with no success. I will >> try >> using the patches that you mentioned and post the results. >> >> Thanks, >> Dave >> >> >> -----Original Message----- >> From: [email protected] >> [mailto:[email protected]] On Behalf Of Kevin P. >> Fleming >> Sent: Friday, September 03, 2010 2:17 PM >> To: [email protected] >> Subject: Re: [asterisk-users] Faxes >> >> On 09/03/2010 10:50 AM, dave george wrote: >> > The asterisk box is connected to the PSTN using TE410 cards. Asterisk >> talk >> > SS7 to the PSTN. On the IP side I use SIP. I terminate calls onto the >> > PSTN. >> > >> > The carrier sending the calls wants me to be able to pass faxes to >> physical >> > fax machines on the PSTN. So far they are failing. >> > >> > We just want ot be able to pass faxes using g711u or t.38 pass through. >> >> As I told you on the asterisk-ss7 list, you can't 'pass through' T.38, >> because the PSTN does not speak T.38. If one side of the call is SIP, >> and the other side is TDM, then you have only two choices: pass the call >> through in audio mode (FAX over VoIP), or act as a T.38 gateway (FAX >> over T.38). >> >> At this time, the only option without patching Asterisk is to pass the >> call through in audio mode, but there are many, many problems with doing >> FAX over VoIP (Steve Underwood's page on the soft-switch.org site >> explains them very well). >> >> There are patches in the issue tracker at issues.asterisk.org to add >> T.38 gateway functionality to various releases of Asterisk, and they >> work well for quite a few people. If you added that, you'd be able to >> act as a T.38 gateway, which would dramatically increase your chances of >> success. >> >> -- >> Kevin P. Fleming >> Digium, Inc. | Director of Software Technologies >> 445 Jan Davis Drive NW - Huntsville, AL 35806 - USA >> skype: kpfleming | jabber: [email protected] >> Check us out at www.digium.com & www.asterisk.org >> >> -- >> _____________________________________________________________________ >> -- Bandwidth and Colocation Provided by http://www.api-digital.com -- >> New to Asterisk? Join us for a live introductory webinar every Thurs: >> http://www.asterisk.org/hello >> >> asterisk-users mailing list >> To UNSUBSCRIBE or update options visit: >> http://lists.digium.com/mailman/listinfo/asterisk-users >> >> >> -- >> _____________________________________________________________________ >> -- Bandwidth and Colocation Provided by http://www.api-digital.com -- >> New to Asterisk? Join us for a live introductory webinar every Thurs: >> http://www.asterisk.org/hello >> >> asterisk-users mailing list >> To UNSUBSCRIBE or update options visit: >> http://lists.digium.com/mailman/listinfo/asterisk-users >> > > > -- > _____________________________________________________________________ > -- Bandwidth and Colocation Provided by http://www.api-digital.com -- > New to Asterisk? Join us for a live introductory webinar every Thurs: > http://www.asterisk.org/hello > > asterisk-users mailing list > To UNSUBSCRIBE or update options visit: > http://lists.digium.com/mailman/listinfo/asterisk-users >
-- _____________________________________________________________________ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- New to Asterisk? Join us for a live introductory webinar every Thurs: http://www.asterisk.org/hello asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
