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.
the t1 circuit is fine and the channel bank did not alarm during the problem (it does have a form c alarm contact)
What I am asking is if anyone knows offhand if the alarm state can be triggered on the fxo/fxs ports by reprogramming, or if it only applies to the t1. OR is there any way with rbs to detect a line that lost loop power ? OR is there a way to have asterisk check every few minutes when a line is not in use that it can raise a dialtone ? if not then have some other process get triggered.
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 > >
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