<html><head><style type='text/css'>p { margin: 0; }</style></head><body><div style='font-family: Times New Roman; font-size: 12pt; color: #000000'>I'm curious about your recommendation to use a long (600 sec) media/RTP timeout value in the sofia profile. Is this a specific need for the Audiocodes device or just generally better for T.38? I'm assuming you are referring to the "rtp-timeout-sec" parameter? <br><br>I'm using FreeSwitch as a media proxy to a T38 provider and have had decent success, but usually have problems with longer faxes (8+ pages) and am wondering if this setting might help? <br><br>Thanks,<br><br>Dave Redmore<br><br>----- Original Message -----<br>From: "Kristian Kielhofner" <kris@kriskinc.com><br>To: "FreeSWITCH Users Help" <freeswitch-users@lists.freeswitch.org><br>Sent: Tuesday, November 16, 2010 9:39:22 AM GMT -06:00 US/Canada Central<br>Subject: Re: [Freeswitch-users] T.38 and Audiocodes or Patton gateway<br><br>Tim,<br><br> I've have good experiences with the MP-20x series using T.38 with FreeSWITCH.<br><br> On the AudioCodes:<br> Make sure your T.30 and T.38 redundancy settings are at least "1".<br> Make sure ECM is disabled.<br> Use the latest 2.6 firmware (not 3.x).<br><br> In FreeSWITCH:<br> Make sure ECM is disabled.<br> Make sure to have a very high (600 seconds seems ideal) media/rtp<br>timeout parameter on the Sofia profile for the AudioCodes device.<br><br> On the fax machine:<br> Make sure ECM is disabled.<br> Disable Super G3 or anything higher than 14.4.<br><br>On Mon, Nov 15, 2010 at 1:08 PM, Tim St. Pierre<br><fs-list@communicatefreely.net> wrote:<br>> Hello,<br>><br>> I am trying to get a reliable fax setup working.<br>><br>> I have set up a nice fax receiver mechanism with mod_spandsp and it works very well when I send a<br>> fax using a Linksys SPA2102<br>><br>> I have poor results with Audiocodes MP202B, and can't get anything to work with a Patton M-ATA<br>><br>> I have a number of Audiocodes MP202B in service and would rather not replace them if I can avoid it.<br>><br>> In each case, the fax fails with "communications error" on the sending machine, and "Call hungup<br>> prematurely" on the SpanDSP side.<br>><br>> There aren't too many knobs on the gateways. Are there any knobs in mod_spandsp that might help<br>> this condition? Anyone else have any experience with these devices?<br>><br>> Thanks!<br>><br>> -Tim<br>><br>> _______________________________________________<br>> FreeSWITCH-users mailing list<br>> FreeSWITCH-users@lists.freeswitch.org<br>> http://lists.freeswitch.org/mailman/listinfo/freeswitch-users<br>> UNSUBSCRIBE:http://lists.freeswitch.org/mailman/options/freeswitch-users<br>> http://www.freeswitch.org<br>><br><br><br><br>-- <br>Kristian Kielhofner<br>http://www.astlinux.org<br>http://blog.krisk.org<br>http://www.star2star.com<br>http://www.submityoursip.com<br>http://www.voalte.com<br><br>_______________________________________________<br>FreeSWITCH-users mailing list<br>FreeSWITCH-users@lists.freeswitch.org<br>http://lists.freeswitch.org/mailman/listinfo/freeswitch-users<br>UNSUBSCRIBE:http://lists.freeswitch.org/mailman/options/freeswitch-users<br>http://www.freeswitch.org<br></div></body></html>