From: Jay Hennigan (jay@xxxxxxxx)
Date: Fri Nov 16 2001 - 21:12:13 GMT-3
On Fri, 16 Nov 2001, Ron Royston wrote:
> Hey, all you lawyers, is it legal to have a phone system configured so that
> a user has to dial "9" to get an outside line, then "911" to get EMS? In
> other words, is it legal to have a system that requires users to dial "9,
> 911"? Thanks.
Note to the worldwide audience, this is a North American Numbering Plan
issue.
Not a lawyer, but virtually all Centrex and PBX systems work this way.
Of course, there's a second dial tone after the original "9" which should
be a clue.
I've set up our PBX so that if someone dials "9" followed by "11" followed
by eight seconds of no further digits it dials "911" on an outside trunk.
If thre are further digits, then it dials "11" followed by the additional
digits.
I've labeled this translation "Panic 911" in the translation table.
So far to the best of my knowledge no one has had to use it.
Curiously tha ANAC readback in this area used to be "114" and telco
technicians had a nasty habit of inserting a leading "9" where it wasn't
needed and winding up at the PSAP. Some of them would then hang up,
resulting in the dispatch of the cops. Of course the phone technician
could be up a pole or in a manhole a few blocks away from the listed
address. Verizon changed the ANAC number a couple of years ago due to
this.
-- Jay Hennigan - CCIE #7880 - Network Administration - jay@west.net NetLojix Communications, Inc. - http://www.netlojix.com/ WestNet: Connecting you to the planet. 805 884-6323
This archive was generated by hypermail 2.1.4 : Fri Jun 21 2002 - 06:45:17 GMT-3