Mindaugas Kezys wrote: > Hello, > > Higher speeds then 9600kbps are not permited by patents. > Would you care to name one that prevents 14,400? > Regards, > Mindaugas Kezys > http://www.kolmisoft.com > MOR PRO - Advanced Billing Solution for Asterisk PBX > > > -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] On Behalf Of Andreas van > dem Helge > Sent: Friday, March 14, 2008 3:28 AM > To: Asterisk Users Mailing List - Non-Commercial Discussion > Subject: Re: [asterisk-users] T.38 SIP Issues > > Has someone submitted a bugreport regarding enabling > 9600kbps fax? I > always wonder why it would never negociate 14400kbps... when it did > work a single page on fine resolution would take 4 minutes. > > Thank you very much for that link. I knew there had to be more > possible configurations for T.38. I will give it a try... but I think > I can get away without patching chan_sip.c, no? that just seems to > enable higher bitrates. > > And Linksys SPA2102 is one of the exact devices I have in my lab. > > On Thu, Mar 13, 2008 at 1:52 PM, Mindaugas Kezys <[EMAIL PROTECTED]> wrote: > >> Hello, >> >> This can help: >> > http://80.86.84.71/kolmiwiki/index.php/Send_Receive_Fax-T38 > >> Regards, >> Mindaugas Kezys >> http://www.kolmisoft.com >> MOR PRO - Advanced Billing for Asterisk PBX >> >> >> >> >> -----Original Message----- >> From: [EMAIL PROTECTED] >> [mailto:[EMAIL PROTECTED] On Behalf Of Andreas van >> dem Helge >> Sent: Thursday, March 13, 2008 5:16 AM >> To: Asterisk Users Mailing List - Non-Commercial Discussion >> Subject: [asterisk-users] T.38 SIP Issues >> >> Is there any trick to getting T.38 fax to work with SIP? I had it >> working and one day with no changes *poof* it stopped working and >> hasn't worked for months. The only common factor is Asterisk 1.4.x >> (always try to use the latest version) and NAT. >> >> I've tried: >> >> -Linksys ATA >> -Grandstream ATA >> -Audicodes ATA >> >> All do the same thing. Call connects, hear the first 2sec of fax tone >> and then just silence, but the call usually stays open. >> >> I've tried two T.38-capable providers. >> >> I've tried two different routers: >> -Linksys WRT54GS running DD-WRT (Linux) >> -Dell Optiplex 170L running PFSense (BSD) >> >> Different Linux distros on the servers: >> -SuSE 64bit >> -RHEL 32bit >> -SuSE 32bit >> >> Is there any magic to get this to work? As far as I can tell the only >> possible config option is "t38pt_udptl = yes" which I have set under >> [general] & the peer. >> Steve
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