ESI 24-Key Digital Feature Phone User's Guide download pdf (Page 12)

Function 1: System parameters IVX 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).

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ESI 24-Key Digital Feature Phone User's Guide Page 12