[cisco-voip] E-911 setup ERL information

[Lelio Fulgenzi]

Agreed, call before you test 911. They typically have no problem, especially when you ask them what day/time you can do it. Bending for them is good practice. 

And by default (in Canada) DIDs (different than LDNs) on a PRI come up as blank on a 911 call, that's why you should never mask 911 calls with a DID until you have PSALI service for that DID. 

...on a slightly related note: 

NPA overlay is causing issues in the 911 switching world because 911 does not understand area codes. Or at least you can't program different area codes into the 911 switch, it only has one default. So if you live in an area with overlapping area codes, chances are highly you'll never see the same exchange in both area codes. If you did, 911 wouldn't know how to direct the call! 

again, that's in Canada folks. 

--- 
Lelio Fulgenzi, B.A. 
Senior Analyst (CCS) * University of Guelph * Guelph, Ontario N1G 2W1 
(519) 824-4120 x56354 (519) 767-1060 FAX (JNHN) 
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
"Bad grammar makes me [sic]" - Tshirt 


----- Original Message ----- 
From: "Paul" <asobihoudai at yahoo.com> 
To: "Lelio Fulgenzi" <lelio at uoguelph.ca>, "Voice Noob" <voicenoob at gmail.com> 
Cc: cisco-voip at puck.nether.net 
Sent: Friday, June 12, 2009 11:08:04 AM GMT -05:00 US/Canada Eastern 
Subject: Re: [cisco-voip] E-911 setup ERL information 


Testing in some locales can get you in a lot of trouble or at least a lot of bitching from the PSAP. I've heard in the city of Alameda, CA, they want to charge you hundreds of USD for every test 911 call you make unannounced. 

When in doubt, call the public safety office first. 

Back to the topic, I would concur that 911 information is handed to the telco and they decide what to do with it. They should have your phone number with its associated location in a giant database. This information is handed off to the PSAP and they decide whether to charge you hundreds of dollars for an unannounced 911 test call. 

I've had a case where an office's PRI line terminated in the next county. When we called 911, they didn't have a location registered to the phone number. Weird but it happens. 




________________________________ 
From: Lelio Fulgenzi <lelio at uoguelph.ca> 
To: Voice Noob <voicenoob at gmail.com> 
Cc: cisco-voip at puck.nether.net 
Sent: Friday, June 12, 2009 11:00:42 AM 
Subject: Re: [cisco-voip] E-911 setup ERL information 


As far as I know, E911 information is given to the Telco, not the PSAP. The PSAP rarely wants to hear from you. Even testing is getting to be a bit of an issue in metropolitan areas. 

You have to get a PSALI type service from your provider. This costs money and allows you to update the records for the DIDs you have purchased. In Canada anyways. 

--- 
Lelio Fulgenzi, B.A. 
Senior Analyst (CCS) * University of Guelph * Guelph, Ontario N1G 2W1 
(519) 824-4120 x56354 (519) 767-1060 FAX (JNHN) 
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
"Bad grammar makes me [sic]" - Tshirt 


----- Original Message ----- 
From: "Voice Noob" <voicenoob at gmail.com> 
To: cisco-voip at puck.nether.net 
Sent: Friday, June 12, 2009 10:10:49 AM GMT -05:00 US/Canada Eastern 
Subject: [cisco-voip] E-911 setup ERL information 


CUCM 7.x with Emergency Responder 7.x. I have all of 
the translations and locations setup working correctly. My problem is with the 
local PSAP operator. The place I am setting up is a large campus but the local Telco 
did not offer PRI’s or CAMA trunks before this installation. This 
customer has enough clout locally to get the Telco to get the equipment so they 
can have PRI’s because they wanted to implement E-911 to the police even 
though there is no law requiring it yet. Now when I try to export my 
location information the local PSAP administrator does not know what to do with 
it. He states that all of that is handled by AT&T at the MSAG. I don’t 
know what MSAG is but it sounds like that is where I need to go. Does 
anyone know of a standard way to export the information that AT&T would 
accept. I think I have hit a brick wall locally. 


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