Roger, Thanks a lot for this very detailed and pertinent answer.
Mike -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Roger Schreiter Sent: March 21, 2006 5:33 PM To: Asterisk Users Mailing List - Non-Commercial Discussion Subject: Re: [Asterisk-Users] FAX over PRI Michael Gaudette schrieb: > I've been warned many times that Fax over VoIP is unreliable. > > How should I consider Fax over PRI channels with Asterisk? Is the > quality and reliability good, or should I be prepared for alot of grief? Hi, we tested faxing a lot. With spandsp (app_rxfax/txfax) we had very reliable results, as long as only one or two simultanious faxes were transmitted or received. Than we bought a commercial DSP software, which is, according to the manufacturer, capable of sending or recieving up to 100 faxes simultaniously on a high perfomance machine. Well, we tested with a dual Pentium machine, not considerable as high perfomance machine, but we expected anyway good results. We could drive up to 30 fax sessions at once using a TE405 Digium card (Asterisk-1.0.10) without notable errors, more fax sessions at once showed a slightly increasing error rate. CPU usage was about 20% (80% idle time average). (We've sent in total 15000 faxes in order to get reliable mean values about the error rates.) Roger. _______________________________________________ --Bandwidth and Colocation provided by Easynews.com -- Asterisk-Users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users _______________________________________________ --Bandwidth and Colocation provided by Easynews.com -- Asterisk-Users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
