Hi- Its not clear from your msg whether you want to detect the open-circuit condition of the T1/E1 directly or on one of the analog circuits connected on the other side of the channel bank.
If directly on the E1/T1, I imagine that asterisk can detect the condition of the "alarm" signals for the circuit - these are separate from the signalling supervision bits like on/off hook. I'm new to asterisk, so don't know how to read those alarm indicators in the software, but the ones you are probably interested in are: "Red Alarm" - means loss of signal (I think a cut line would cause this), "Yellow alarm" - means far end detected an error, and "BPV" - bi-polar violation, means degraded signal (usually). Hope this helps. regards Scott M. Stingel Emerging Voice Technology Inc. Email: [EMAIL PROTECTED] <mailto:[EMAIL PROTECTED]> URL: www.evtmedia.com <http://www.evtmedia.com> > -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] On Behalf Of > Jon Pounder > Sent: Tuesday, July 08, 2003 4:29 PM > To: [EMAIL PROTECTED] > Subject: [Asterisk-Users] line battery check > > > I know in the x100p hardware the driver can sense whether > there is battery > voltage on the line or not. Is this possible in the zap > drivers using t1/e1 > interfaces ? > > I believe the signalling bits are only ring and hook, not > loop presence, so > not sure if it is possible. > > I had a situation last night where a main cable was cut in > the area and > lines were down overnight. My burglar alarm knew right away > there was no > line battery and started beeping. Data T1 down was a > no-brainer for the > monitoring software to detect. Now I am looking for a way to > detect loop > loss on the voice lines - any ideas how to accomplish with asterisk ? > > I have a zhone bank - anyone know offhand if I can program > loop loss on a > port to put it into an alarm state ? At least then I would > have a contact > closure I could monitor easily. > > _______________________________________________ > Asterisk-Users mailing list > [EMAIL PROTECTED] > http://lists.digium.com/mailman/listinfo/asterisk-users > > _______________________________________________ Asterisk-Users mailing list [EMAIL PROTECTED] http://lists.digium.com/mailman/listinfo/asterisk-users
