[time-nuts] Time in Phone System

[Hal Murray]

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


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