Ahh, I see. Is this true of all Channel Banks connected through T1? I am less concerned about fixing my testing environment as in making sure the program works in as many customer environments as possible. If I have to rule out this fairly common environment, it would be too bad (though not the end of the world).
I definitely don't want to go the DSP route: http://www.3amsystems.com/wireline/tone-search.htm scares me. joegen-at-opensipstack.org joegen-at-opensipstack.org |SIP Implementors| wrote: > Bruce, > > It's not not asterisk. T1->Channel Bank does produce an early seize > signal. Your best bet would be to use a tone analyzer to detect the > ring back in-band in your announcement UA. This will be quite a > daunting task because you will need to deploy different sets of tone > detection for the different frequency used in different countries. My > advise, get rid of the channel bank and use T1 all the way. > > Joegen Baclor > > Bruce Atherton wrote: >> Actually, my setup is a Sangoma T1 card connected to an Adtran 750 >> channel bank with some FXO ports. But you are right that the whole >> pathway is controlled by Asterisk. >> >> Dale.Worley wrote: >> >>> From: Bruce Atherton <[EMAIL PROTECTED]> >>> >>> That is really good news. So the problem must just be with >>> Asterisk, which happens to be the PBX I am testing with. I will >>> take the issue up with the developers there. >>> >>> Oops, my mistake -- IIRC, you might be using a Digium PSTN interface >>> board, plugged into the Asterisk host. In which case, everything >>> regarding the PSTN interface is driven by the Asterisk code. But I >>> assume the Asterisk developers know all about that, and any >>> idiosyncrasies it has. >>> >>> Dale >>> _______________________________________________ >>> Sip-implementors mailing list >>> [email protected] >>> https://lists.cs.columbia.edu/cucslists/listinfo/sip-implementors >>> >> >> _______________________________________________ >> Sip-implementors mailing list >> [email protected] >> https://lists.cs.columbia.edu/cucslists/listinfo/sip-implementors >> >> >> > _______________________________________________ Sip-implementors mailing list [email protected] https://lists.cs.columbia.edu/cucslists/listinfo/sip-implementors
