GPS for 911 calls

Perry E. Metzger perry at
Tue Mar 6 00:56:08 CET 2007

Ian Stirling <openmoko at> writes:
> Michael Welter wrote:
>> What is the protocol for sending the GPS coordinates to the 911 dispatcher?
> I don't think there is one protocol.
> Unfortunately, I suspect a 'say GPS coordinates' button on the 911
> screen may be the most compatible way.

Wireless Enhanced 911 for mobiles, including GPS or other
radiolocation data, is a US standard. I don't know how the signaling
works, but if you are selling a new phone in the US, it is mandatory
that you comply.


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