atcomsystems.ca/forum Forums General General Telephone & Systems Information Phone line dials 911

The only time that 99 comes into the picture is if you need to dial 911.. 6 (6* if dtmf phone) to get campus dialtone, 9 to get telco dialtone, 911 to get emergency services, or 6*-9-911. everywhere else on campus. you have to dial 9-911.

We had a few phantom 911 hangups reported to us, and I figured out how the dialing error could cause them..

The station has a long history of telecom hackers, dating back many years.. The station has had their own cables in the tunnels since at least the 1960's, and possibly earlier.. prior to the 711B, they used a system of WWII vintage EE-8 field phones, some of which survive to this day as a phone-system-of-last-resort. The station is an intregal part of the campus emergency plan, and multiple layers of redundancy are provided throughout the station facilities.

Not really.. the stations use of the 711B predates the campus pbx by about 10-15 years. The campus was previously served by centrex, and before that, probably a cord board.

The station formerly had direct telco trunks to the 711B, with a couple tielines to the campus, but switched onto the campus pbx in order to take advantage of the campus bulk rates, extended calling area, and toll restrictions and accounting. I'm not convinced that it was the best decision in the long run, due to the monopoly pricing of the campus telecom services, but due to other changes, switching back would be even more costly. (telco has since abandoned and removed their old cable into the building, so the station would have to lease pairs from campus telecom for backhaul. If they had enough trunks to justify a T-1, it might be a different story.)

We were never sure, but we may have had the only ground start trunks on campus..

Happened here too,but my dog chewed through wire at protector.Cops showed up and asked why I dialed 911 and lots of questions.This was in verizon area.Ontario. Calif
CM

The 911 thing in the middle of a number has probably been fixed. It would only happen if the number was dialed REALLY fast, and that was on an OLD 911 system. It was in the late 80's (88-89)and the system didn't even pass CID at the time. If we had to know where the call came from we had to page the oncall person for the phone company and have them go down there.

Had a subscriber in the country with a panic dialer. All you had to do was take the phone off the hook and the dialer would dial the seven digit police number (pre 911 service). I was stumped that every time I tried to make a test call on there line they would start dialing. also had a three digit (324) test number. If we left it Idle it would ring about twice an hour from wrong dialing. If the emergence number was seven digits (say 911-7733) it would stop a lot of the wrong numbers.

Sorry for jumping in so late, also I have not yet read through all the posts so for give me if I say something that has already been addressed.
An off-hook is a short and many assisted living systems are set-up to alarm a nurse-station or dial 911 if the phone is off-hook and not dialed. Watch-mate is one type of software that will do this. As for this happening with the phone unplugged it could be a wiring issue or a pull cord in the the residents room since many pull cords operate off an analog port in the phone switch.

Just my expierence. We have United Way as a customer which has a "211" Call Center. We installed a BCM a few years ago, and from the first day the operators complained of no one being on the line when they answered many of the calls which came through the AA. They also had as many as 50 static messages in the 211 mailbox after hours. We started tracking incoming calls with the help of the CO and found that the lines that were making the calls, were all in trouble(IE. Wet cables) After engaging Nortel DMS support as well as Nortel ITAS they confirmed that this was the problem. 211 is the lowest numerical number that can be dialed with pulses (4). It is possible that 911 could be pulsed although the other 3 digit numbers should have been dialed before it got to 911. To solve the problem we had to set the AA up so that the caller would have to choose an option in the AA.

Many CO's are programmed that a missed dial number defaults to 911, just in case an emergency does exist. So a line that see a partial short will default to 911 system that has enhanced software will show the address that the call is coming from, it is possible that the problem is telco. Check with 911 nonemergency line to see which telephone line made that call and check it with butt set. if it sounds clear have teleco check for partial shorts, they can measure the length of each wire to see if problem exist...good luck

There may also be a dialer (like an old Mitel SMART-1 or PAV CHAIN) set up to dial that number on off-hook condition -- a primative ringdown circuit for an emergency phone. Look for a dialer of some sort.

BJW86 stated on 12-2-5 that a faulty cable pair was found to be the issue and that it was repaired and the problem was resolved ! :read: