[time-nuts] sub-minute time-precision in court-case

Poul-Henning Kamp phk at phk.freebsd.dk
Tue Sep 3 14:21:29 EDT 2013


In message <5225F8AF.60807 at earthlink.net>, Jim Lux writes:

>In this case, all the messages were presumably handled by the same 
>carrier, so the issue of skew in timestamps is negligible; 

Anything but.

The text-messages are likely stamped by the SS7-message-gateway
and the 911 call by the countys 911 equipment.

And yes, there can be quite a delay from you press "send" until
the SS7-message-gateway sees the text-message.

-- 
Poul-Henning Kamp       | UNIX since Zilog Zeus 3.20
phk at FreeBSD.ORG         | TCP/IP since RFC 956
FreeBSD committer       | BSD since 4.3-tahoe    
Never attribute to malice what can adequately be explained by incompetence.


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