[cisco-voip] [Semi-OT] E911 and legal issues

[Netfortius]

Sorry for the off-topic, but google-ing around didn't reveal much to me, so 
here it goes: has any one of the members of this list implemented an E911 
solution? I have a client who needs this installed, but we do not know if the 
configuration has to be related to legal aspects in the state/county/town the 
company resides in. Here is what I am referring to: 

- under the old, analog system, the methodology of calling 911 had the number 
actually routed to an emergency crew, properly trained in CPR and other first 
emergency responder methods, who would then decide if the call had to really 
go to 911. One of the big advantages of this method was also the fact that 
the internal crew had full knowledge of the location of each person, to the 
cube and office level

- someone I was discussing this issue with said to me that the above was only 
possible under very old laws, allowing such, and that the new laws require 
911 calls to be sent directly to the 911 services, and that the location will 
have to be passed on based on the information from a database my customer 
will have to deliver (and maintain?!?) in coordination with the 911 folks, 
such that each phone will be identified in a specifc area of the building, 
based on participation in a switch-port connection. To me this sounds 
extreme, because one of the advnatages VoIP has been bringin to the table 
was ... well ... mobility of phones (no matter where I plug them, they 
register) - so how the heck are we going to be able to continuously update 
the switch-port info?!?

Any pointers will be highly appreciated - to narrow the scope I would be 
mostly interested in USA - Illinois, but of course other states' deployment 
experience will also be valuable.

If you feel the above is totally off-topic, please accept my apologies, and - 
if anythiung useful to be added - please email me directly.

Thank you,
Stefan