On 02/05/2010 07:40 PM, Vinícius Fontes wrote: > This message is pointed directly to Steve Underwood. I tought it would not be > nice to directly email him with a question that interests a good part of the > Asterisk community, so here it is. :) > > Steve, remember a few days ago when we discussed about issues on Asterisk > 1.6.1.13 and T.38 fax reception? Well I opened an issue on Mantis > (https://issues.asterisk.org/view.php?id=16756) and turns out it might be > spandsp-related. > > What happens is, when I use app_fax to receive a fax using T.38, I get very > low transmission rates, and about 30% of the faxes are just not transmitted > at all. 2400bps is not uncommon. If instead of T.38 I use an analog landline > connected to that very same Asterisk box, app_fax works wonderfully well > transmitting at full 9600bps. Just to rule out Asterisk's T.38 handling, I > noticed that Fax For Asterisk works perfectly with T.38, also on that same > box. > Is the FAX machine you are using only capable of 9600bps, because full speed should be 14400bps?
Can you get a packet trace of a problem call, using wireshark, and mail it to me? > I'll be happy to provide you any info that could help solve this issue. > > Steve -- _____________________________________________________________________ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
