Vonage Selects TCS For VoIP E911 Service

Andre Oppermann nanog-list at nrg4u.com
Wed Jul 20 09:55:52 UTC 2005


Michael.Dillon at btradianz.com wrote:
>>>I see no other way of doing this reliably than to put some kind of 
>>>GPS device into the VoIP unit.
>>
>>While I agree that GPS is the likely answer, I wasn't expecting the 
>>ability to work inside computer rooms and basements.
> 
> 
> It doesn't need to work in basements, etc. It only needs to keep
> a record of the last location it was at when the signal faded
> away. The emergency service vehicles probably can't get any closer
> than that anyway.

I wonder how that works with VoIP ATA adapters. Last time I looked
they didn't work while I was carrying it around in its box from the
dealer home.

To sum it up: Using GPS to geo-locate VoIP phones or adapters is broken
by design.

-- 
Andre



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