On Jan 17, 2008 1:28 PM, Jeremy Mann <[EMAIL PROTECTED]> wrote: > Is it bridging the Zap channels? We have asterisk doing FXO-FXS modem > calls working fine, the key is making sure the channels are bridging and EC > is NOT turning on. If you have anything preventing that the modem calls > won't work. > > -----Original Message----- > From: [EMAIL PROTECTED] [mailto: > [EMAIL PROTECTED] On Behalf Of Dave Fullerton > Sent: Thursday, January 17, 2008 12:05 PM > To: Asterisk Users Mailing List - Non-Commercial Discussion > Subject: Re: [asterisk-users] modem through Zaptel/Digium? > > Greg Woods wrote: > > This is just a low priority curiosity question because I have a usable > > workaround. > > > > I have Digium card that uses the Zaptel driver (can't get to my home > > machine right now to get the exact model, but it probably doesn't > > matter). It's a card with one POTS line and three extension hookups. I'm > > using Asterisk 1.4 and Zaptel 1.4.7 . > > > > One of the extension ports is connected to a modem on another computer. > > This is a FAX modem that works well; I have * programmed to detect > > incoming faxes and route them to this modem, and it works seamlessly. I > > can also send outbound faxes with no problem. > > > > The curiosity is that this modem does not work for dialup unless I > > bypass the * server and connect it directly to the wallplate, then it > > works fine. I don't see why it would be able to detect carrier and > > negotiate with a fax machine through * and Zaptel, but not with a dialup > > server. > > > > --Greg > > I think asterisk has the ability to detect fax tones and disable echo > cancellation for those calls. I don't know if that is the case with a > regular modem call. I'd check to make sure that echo cancellation is > disabled on the extension the modem is plugged into. The only other idea > is to try connecting at a lower speed (I would think this would happen > automatically though). > > -Dave >
Try setting the modem to 9600 baud. It will probably work. Thanks, Steve Totaro
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