Function 1: System parameters IP E-Class Administrator’s Manual
B.2
Function 142: Automatic time setting
1. Synchronize with CID
This function, when enabled, synchronizes the real-time clock with Caller ID (CID) messaging:
call processing compares the time of a CID message to the system real-time clock and, if the
difference is more than two minutes, resets the real-time clock to match the time (hours and
minutes) of the CID message. The system will analyze each such message (or — if it receives
more than four calls with CID information within a one-minute period — as is needed). Select
ENABLE or DISABLE by pressing a scroll key (either W or V). Choosing ENABLE will allow the
CID data to update the time and date.
Default: Enabled.
Notes: If this function is enabled, Esi-Link time synchronization (from location 700) will be disabled.
If this function is disabled, Esi-Link time synchronization will be allowed (minutes only).
2. Adjust for Daylight Savings Time
This function, when enabled, causes the real-time clock to adjust itself automatically for Day-
light Savings Time (DST). Select AUTO or DISABLE for DST by pressing a scroll key (either
W or V). Choosing DISABLE is best for those areas that don’t observe DST.
Default: Disabled.
Note: If this function is enabled and it causes an automatic time change, the system won’t update
the real-time clock from either Caller ID messages (Function 1421, above) or Esi-Link time
synchronization for 25 hours before and 25 hours after the time change is due to be effective
(i.e., 2:00 AM Sunday).
