[cisco-voip] Emergency Calling from VoIP Remote Sites

[Lelio Fulgenzi]

I believe 911 enable also has SIP features such as extension information as well. It's definitely the Cadillac of e911 solutions for now. 

Still doesn't do trap based database updates. Only does polling. 


--- 
Lelio Fulgenzi, B.A. 
Senior Analyst (CCS) * University of Guelph * Guelph, Ontario N1G 2W1 
(519) 824-4120 x56354 (519) 767-1060 FAX (JNHN) 
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----- Original Message ----- 
From: "Scott Voll" <svoll.voip at gmail.com> 
To: "Chris Lewis" <Chris.Lewis at magnetar.com> 
Cc: cisco-voip at puck.nether.net 
Sent: Tuesday, January 12, 2010 10:51:20 AM GMT -05:00 US/Canada Eastern 
Subject: Re: [cisco-voip] Emergency Calling from VoIP Remote Sites 

Two thoughts. 


1. the legal Disclaimer with a big sticker on the phone that says DO NOT USE 911. 


2. 911 enable has a great setup. they use sip trunks and route the calls to the correct PSAP(nationwide). they have an application that will ask the phone user (SOHO) for location (address) and will route the call correctly to the right PSAP with the correct address. I know of a very large customer who scrapped CER for these added features. But it is more expensive then CER. 


Just my thoughts. YMMV 


Scott 


On Tue, Jan 12, 2010 at 12:28 AM, Lewis, Chris < Chris.Lewis at magnetar.com > wrote: 






To add something to the mix on this, what are your thoughts on having remote users who have IP Phones at home, VPN tunnel to head office and are registered to the Head Office UCM. When they dial 911, the call would come from the Head Office rather than the users homes location. They may have their own phone setup – as most people invariably do – but if they are at their desk then they will automatically use their IP Phone. Bearing in mind this is only a connection with an ASA to the Main Site – so no SRST etc – what are peoples thoughts here? 



Our way around this is to put a legal disclaimer to the end users to ensure they have to explain their location if/when they are connected to the PSAP in an emergency. 








From: cisco-voip-bounces at puck.nether.net [mailto: cisco-voip-bounces at puck.nether.net ] On Behalf Of Bas van der Veen 
Sent: 11 January 2010 20:56 
To: Walt Moody 
Cc: cisco-voip at puck.nether.net 
Subject: Re: [cisco-voip] Emergency Calling from VoIP Remote Sites 






> Is the possibility that the WAN will be broken at the exact time 
> someone needs emergency help (and can't find a cell phone) great 
> enough to justify the additional facilities? 





Yes. Murphy might pay you a visit, why take the risk? 





We combined the SRST and emergency call functionality and have SRST gateways at all remote locations, connected to PRI's or single ISDN lines. 





On Fri, Jan 8, 2010 at 10:44 PM, Walt Moody < moody at arizona.edu > wrote: 

Group, 

We have several sites which are remote from the main campus but are 
"local" in as much as they are located within Qwest's Tucson rate 
center. The ones that are equipped with Voice over IP get all of 
their connectivity and DID extension numbers from the CallManager 
clusters on campus. The CallManager clusters are equipped with Cisco 
Emergency Responders so that all 911 calls are routed to the proper 
PSAPs with the proper emergency response address as set up in the 
Intrado database. 

When everything is working properly, all 911 calls go where they're 
supposed to go and have the correct response location in the PSAP's 
automatic location identifier field. 

A remote site user asked "Will I be able to call 911 from my location 
with my VoIP phone when the WAN is down?" and our answer is "No." 

So the question for the group: Is it your custom to provide facilities 
(phone line, gateway interface interface card, DSPs, SRST software, 
etc.) solely to allow access to 911 in the event of a WAN failure? 

Is the possibility that the WAN will be broken at the exact time 
someone needs emergency help (and can't find a cell phone) great 
enough to justify the additional facilities? 

Thanks in advance. 

-walt 
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