[time-nuts] Time in Phone System

[jim s]

On 7/21/2014 9:07 PM, Brooke Clarke wrote:
> Hi:
>
> Every phone in my house that has an LCD shows the correct date & time, 
> but I have never set any of them.
> 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.
> Where to get technical details on the data format/protocol?
>
My Panasonic cordless systems both have time settings in the base and 
use that.  The Uniden cordless system is simpler and also uses the base 
system time setting.

Settings for all three systems are thru a setup menu for the phone and 
have no provision for reading the times from any other source.

FWIW, the Panasonic systems will override the text of the caller id if 
the number matches one you have entered in your directory.  They are the 
type which have the voice reading of the caller id, doing a wonder job 
of mangling the pronunciations.

Jim