[time-nuts] Time in Phone System
Hal Murray
hmurray at megapathdsl.net
Tue Jul 22 02:01:19 EDT 2014
brooke at pacific.net said:
> I expect that there's date and time information being sent in the header of
> every phone call, maybe even before the first ring along with the Caller ID
> info.
Wiki says CallerID is sent between the first and second ring, and includes
the date and time.
http://en.wikipedia.org/wiki/Caller_ID#Operation
--
These are my opinions. I hate spam.
More information about the time-nuts
mailing list