<html><head><style type="text/css"><!-- DIV {margin:0px;} --></style></head><body><div style="font-family:times new roman, new york, times, serif;font-size:12pt"><div style="font-family: times new roman,new york,times,serif; font-size: 12pt;">Hello,<br><br>I never heard of G.729 pass-thru. I'm not sure that it exists.<br><br>In any case, the way T.38 works (at least in my network) is that when the receiving end detects that a fax machine answered the call, it sends a reINVITE with a request to switch to T.38, regardless of the codec used for the call setup.<br><br>Since all my DID providers and own gateways are configured and tested successfully with T.38, I don't want to start playing around with other things (like G.711).<br><br>I need (if it's possible) Asterisk to be configured to send T.38 reINVITE immediately when it connects the call, if it knows that it's for a "Fax DID" and connect in T.38 and once received, send the fax to the email address of the customer in PDF
or Tiff format.<br><br>If anyone did this and knows how (and wants) to do it, I'd appreciate your quote.<br><br>Thanks.<br><br><div style="font-family: times new roman,new york,times,serif; font-size: 12pt;">----- Original Message ----<br>From: Leo Ann Boon <leo@datvoiz.com><br>To: Commercial and Business-Oriented Asterisk Discussion <asterisk-biz@lists.digium.com><br>Sent: Monday, October 30, 2006 7:30:22 AM<br>Subject: Re: [asterisk-biz] T.38 Fax2Mail<br><br><div>Mitul Limbani wrote:<br>> Hello David,<br>><br>> Quoting David <dst_u@yahoo.com>:<br>><br>>> Hello,<br>>><br>>> We would like to offer Fax2Mail service through Asterisk, using T.38 <br>>> (we do not support G.711 pass-thru) protocol.<br>><br>> Did you mean G729 pass-thru ? I havent heard of term G-711 Pass-thru :)<br>Now you do :). Yes, some ATA do that. The moment a fax tone is detected, <br>it drops to G.711 regardless of the codec
setting.<br><br>><br>> So you wish to run Fax2Mail using G729 Compression codec ?<br>><br>> We had success of recieving Fax by using G711 codec on a T38 supported <br>> ATA.<br>So, you're using T.38 or just fax over G.711? The ATA may support T.38 <br>but doesn't necessarily imply your fax was relayed via T.38.<br><br>Even T.38 is no panache for every problem. Have you ever tried to relay <br>T.38 to a C**** gateway more than 4 hops away? Read Steve Underwood's <br>website if you want to understand the issues.<br><br>Back to david's question:<br>Personally, I won't bet the farm on using Asterisk to run a T.38 fax to <br>mail service. In fact, I'd be very careful about using T.38 in general. <br>There're just too many broken T.38 equipment out there. I believe you <br>can get good results (>80%) if you restrict yourself to a select list of <br>endpoints. Otherwise... Let's just say I won't want to be working in <br>your help desk
department.<br><br>Leo<br><br>_______________________________________________<br>--Bandwidth and Colocation provided by Easynews.com --<br><br>asterisk-biz mailing list<br>To UNSUBSCRIBE or update options visit:<br> <a target="_blank" href="http://lists.digium.com/mailman/listinfo/asterisk-biz">http://lists.digium.com/mailman/listinfo/asterisk-biz</a><br></div></div><br></div></div><br></body></html>