Yes, the fax machine only transmits at 9600. That's normal and expected. I'll capture the packets and will provide you with a link to download it in a few minutes.
Atenciosamente, Vinícius Fontes Gerente de Segurança da Informação Canall Tecnologia em Comunicações Passo Fundo - RS - Brasil +55 54 2104-7000 Information Security Manager Canall Tecnologia em Comunicações Passo Fundo - RS - Brazil +55 54 2104-7000 ----- "Steve Underwood" <ste...@coppice.org> escreveu: > 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 -- _____________________________________________________________________ -- 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