Am 12.03.2010 19:05, schrieb Alexandru Oniciuc: > Hi Steve, > > the remote device is an Hylafax Server that does ECM.
How is Hylafax connected to VoIP? regards Klaus > The sending fax > device, that's attached to the ATA, is a Philips fax machine with ECM > enabled. If I send with the same machine but attached to a Patton > 4114 with T38 enabled my faxes go to the other end with ECM enabled > and with no errors. It would be interesting how the T.38 SDP differs between Grandstream and Patton. regards klaus > > I've also tested the Grandstream ATA with analog fax machines > attached to the PSTN and the results are the same: bad quality faxes > or no faxes at all. Again, tested with the Patton device I get no > errors. > > In this case I think it's the Grandstream. > > Best Regards, Alex > > ________________________________________ Da: > [email protected] > [[email protected]] per conto di Steve > Underwood [[email protected]] Inviato: venerdì 12 marzo 2010 18.01 > A: Asterisk Users Mailing List - Non-Commercial Discussion Oggetto: > Re: [asterisk-users] t38 ATA > > On 03/13/2010 12:00 AM, Alexandru Oniciuc wrote: >> >> Hello, >> >> I need a hand in choosing a small ATA, even with one FXS port, >> that should do only fax with T38. >> >> I’ve tried Grandstream (ht286 model) but the faxes go out without >> ECM, even if the Fax machine has ECM enabled. >> >> Is there anyone that can recommend an ATA that might do the trick? >> >> Thanks, >> >> Alex >> > The Grandstreams do T.38 quite well, and they do support ECM. It is > probably your service provider which is blocking ECM. Many of them > do. > > People complain a lot about Grandstream, but its mostly their > phones. Their ATA are amongst the better ones. Sadly, that doesn't > mean an awful lot, as most ATAs are quite nasty. > > Steve > > > -- > _____________________________________________________________________ > > -- 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
