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North American Network Operators Group Date Prev | Date Next | Date Index | Thread Index | Author Index | Historical RE: Vonage Selects TCS For VoIP E911 Service
> > > I think this can work. Put a battery backup in the ATA, to power the > GPS and real time clock. The ATA will maintain the internet-routable > address it's using (not necessarily it's own IP address) indefinitely. > If the ATA determines it's routable address (or /23 or whatever subnet) > has changed since being disconnected, it prompts (via voice menu on > connected phones) that it needs to be taken outside and re-GPS'ed. > Flashing light on the box confirms when GPS has synced it's location. > Take it back inside, plug it in, and all is ok again. Or something > along those lines.... So will you block all useage until you do so? Any voluntary compliance solution will fail the CALEA aspect. And I recall reading somewhere in the trade press that the reason some cellular carriers went to GPS-based solutions was they could not meet the FBI specs for accuracy with tower-timing solutions. And needless to say, I can think of many places both cellular and VOIP cam be used where GPS will be worthless. One other point: both the FBI and EMS want to know which office on which floor of the Empire State Building you are in when you call, not just a 2-D circle of X radius. -- A host is a host from coast to [email protected] & no one will talk to a host that's close........[v].(301) 56-LINUX Unless the host (that isn't close).........................pob 1433 is busy, hung or dead....................................20915-1433
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