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Re: How relable does the Internet need to be? (Was: Re: Converged Network Threat)
At 02:49 PM 2/27/2004, Jeff Shultz wrote:
** Reply to message from Petri Helenius <[email protected]> on Fri, 27 FebYou can take your Vonage with you. Some people do this. It's a bad idea to dial 911 on a Vonage setup that you have on the road with you, but the question of mobility certainly can be studied using this service.
Despite best efforts, there will be IP telephones in residences that are tied to corporate phone systems that are far away. If in the heat of the moment someone dials 911 on that phone instead of the "home" wireline phone, the 911 call could well be routed to another city, or even another continent. Remember that phones could be attached to VPNs going far away.With cell phones it's based on the cell it comes into. If some sort of truly mobile IP based phone comes in, I'd guess that the provider is going to have to set it up to where the local router (or associated VOIP device) "listens" to the VOIP traffic for a 911 call, intercepts it and sends it to the local 911 center - my presumption is that they'll have to have a router of some sort in the local area to handle the mobile IP traffic. The GPS idea isn't a bad one either - since I think most new cell phones are coming out with this (it's been mandated, right?) it's a cheap addition and can be used by whatever the router redirects the call to for a better determination of the call center if the phone has the info. The easier solution would probably be for the "mobile IP phone service" to set it up as a dynamic address thing, where the phone number is assigned to the MAC address and the system updates a central index of what IP address is currently serving what phone number. And by whatever "DHCP" server assigned the address, that would be used to determine the 911 center most appropriate.
The simple response to this situation is to say "tough luck. Use a wireline phone." Or at least "don't use the corporate phone that's on the VPN." Will these be acceptable to regulators? Will the courts accept the argument in a court case? This isn't going to be a simple issue to settle.