On Mon, 25 Aug 2003, Mark Spencer wrote: > > Nothing like being on the cutting edge. :-) > > Always
The pioneers have arrows in their *fronts*, the cowards have arrows in their backs! > > If that is true, then the bits are not mangled by * at all, > > answering the previous question. But ISDN is actually > > *easier* in some ways, no DSP on the samples to recover the > > modulation. > > The trouble with ISDN is specifically that there is no "echo > cancel disable" tone preceeding the call. How does the portmaster distinguish between an incoming ISDN call and incoming analog call? I know this can be done, my local ISP can handle ISDN and analog calls on the same phone number and it must know when the call comes in. Whatever method the portmaster uses to tell those apart should be applicable to * to disable the echo cancel. This might be as simple as "voice" versus "data" call (is that info provided by the PSTN?). Is the echo cancel needed on voice ISDN calls? I can live with no support for voice ISDN calls (can imagine why I would ever get one). -- Mike Ciholas (812) 476-2721 voice CIHOLAS Enterprises (812) 476-2881 fax 2626 Kotter Ave, Unit D [EMAIL PROTECTED] Evansville, IN 47715 http://www.ciholas.com _______________________________________________ Asterisk-Users mailing list [EMAIL PROTECTED] http://lists.digium.com/mailman/listinfo/asterisk-users
