RE: crypto delay (Notes from Non-meeting)

On Wed, 20 Mar 2002, Rosen, Brian wrote:

> 3) Impractical to use
> takes seconds to verify the signature on the
> processors in the devices. Cannot add a second
> to post dial delay

Just how much time is considered important in emergency calls ?
If there are humans in the loop who don't know each other, or maybe
even speak the same language fluently, we're talking tens of seconds at
least, maybe minutes. Emergency services can't put a response together
that fast, in any case. A few seconds taken to authenticate a location
and reduce the incidence of false alarms is going to save time and lives
in the long run.
There is perhaps an issue if the caller believes the equipment is broken
and tries to reconnect, or abandons it altogether. This might be obviated
by some display or audible feedback of call/authentication progress.

-- 
Andrew Daviel