User's Manual Part 1

Firmware Version 1.0.0.1 UCM6200 Series IP PBX User Manual Page 74 of 320
Table 21: Time Auto Updating
Remote NTP Server
Specify the URL or IP address of the NTP server for the UCM6200 to
synchronize the date and time. The default NTP server is
ntp.ipvideotalk.com.
Enable DHCP Option 2
If set to "Yes", the UCM6200 is allowed to get provisioned for Time Zone
from DHCP Option 2 in the local server automatically. The default setting
is "Yes".
Enable DHCP Option 42
If set to "Yes", the UCM6200 is allowed to get provisioned for NTP Server
from DHCP Option 42 in the local server automatically. This will override
the manually configured NTP Server. The default setting is "Yes".
Time Zone
Select the proper time zone option so the UCM6200 can display correct
time accordingly.
If "Self-Defined Tome Zone" is selected, please specify the time zone
parameters in "Self-Defined Time Zone" field as described in below
option.
Self-Defined Time Zone
If "Self-Defined Time Zone" is selected in "Time Zone" option, users will
need define their own time zone following the format below.
The syntax is: std offset dst [offset], start [/time], end [/time]
Default is set to: MTZ+6MDT+5,M4.1.0,M11.1.0
MTZ+6MDT+5
This indicates a time zone with 6 hours offset and 1 hour ahead for DST,
which is U.S central time. If it is positive (+), the local time zone is west of
the Prime Meridian (A.K.A: International or Greenwich Meridian); If it is
negative (-), the local time zone is east.
M4.1.0,M11.1.0
The 1st number indicates Month: 1,2,3.., 12 (for Jan, Feb, .., Dec).
The 2nd number indicates the nth iteration of the weekday: (1st Sunday,
3rd Tuesday…). Normally 1, 2, 3, 4 are used. If 5 is used, it means the
last iteration of the weekday.
The 3rd number indicates weekday: 0,1,2,..,6 ( for Sun, Mon,
Tues, ... ,Sat).
Therefore, this example is the DST which starts from the First Sunday of
April to the 1st Sunday of November.