[cisco-voip] 911 Sanity Check

[Poper, Cathy]

We have had to configure each of our remote/networked locations with a
router, using FXO ports, and a 1FL business line - which is used for
911 call-back/location information as well as SRST. We've got 150
networked sites, all configured with a "router on a stick" configuration
(mostly 1760 routers, and 3550/3560/2950 switches). Call Manager and CER
are then configured with each location's 1FL for PSAP call-back and
phone tracking. 
 
Hope this helps!

Cathy Poper 
Network Support Analyst 
City of Hamilton-Information Technology Services 
55 York Blvd, 6th flr 
Hamilton. Ont. Canada 
L8L 3K7 
Tel: 905-546-2424 x5481 
Fax: 905-546-2333 
Email: cpoper at hamilton.ca 
~~~~~~~~~~~~~~~~~~~~ 

	-----Original Message-----
	From: cisco-voip-bounces at puck.nether.net
[mailto:cisco-voip-bounces at puck.nether.net] On Behalf Of TechGuy
	Sent: Wednesday, July 11, 2007 5:27 PM
	To: cisco-voip at puck.nether.net
	Subject: [cisco-voip] 911 Sanity Check
	
	
	I am having the worst time dealing with our telco SP and 911,
because of this I have to reach out to others and find out if I am
simply asking for too much or if there is a major deficiency on the part
of our telco provider. 
	 
	Here is the basic issue / scenario I am dealing with.
	 
	Business with about 10 different offices spread out in 10
different locations / rate centers.
	 
	Four PRI's all coming into one data center, and using
CallManager to manage gateway and phones.  This isn't really a technical
issue related to callmanager as much as its an issue with the PRI's and
911
	 
	The PRI's have 600 DID's all in one range and tied to the telco
rate center in which the data center is located.
	 
	Obviously the data center and the offices are not the same and
like I said in many different rate centers.
	 
	So I have employees with a number that does not accurately
represent the location they are in.  For arguments sake and in an effort
to paint a clearer picture here, lets say the data center is in Dallas
and the DID range is say 972-453-1000 thru 1599 
	 
	And say I have an employee at an office in Houston, but his
number is one falling into the range above.
	 
	Where this becomes an issue obviously is with 911.  I thought
there would or should be a way through e911 or something to provide a
list of numbers and the office they should be tied to.  Say I have setup
a group of 100 numbers from my above range to belong to my Houston
office.  It would seem that there would or should be a way to have that
group of numbers setup to reflect the correct address and route to the
correct 911 center. 
	 
	Maybe I am sadly mistaken here and this is not something that
can be done or can but not by all service providers or something?
	 
	My other option obviously is to place a local gateway at each
office and get a local pots line tied to it and setup callmanager to
route 911 calls through this gateway for the phones in that particular
office. I know I can do this, but it really takes away from the whole
voip cost savings by increasing my need for new hardware. 
	 
	So, who can help me understand this?  Is this a limitation of
the my telco service provider if they are saying they can't do this and
that I have to have numbers on the PRI tied to each rate center?
Because thats where I am right now, telco is telling me I have to get
numbers or DID's for each rate center and use those for each of my
offices.  Which to me would just be a major admin nightmare.  I would
have very inconsistent ext. ranges and such all over the place. 
	 
	Love to hear some thoughts.  Tell me I am crazy and expecting
too much, missing some obvious point, I can take it.  :-)  I just need
to know good or bad what the deal is.
	 
	Appreciate all your time and thanks for any responses in
advance.

-------------- next part --------------
An HTML attachment was scrubbed...
URL: https://puck.nether.net/pipermail/cisco-voip/attachments/20070712/dcc437ae/attachment.html