Grandstream Networks GRP261X Administration Manual page 72

Carrier-grade ip phones
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Settings  Preferences  Date and Time
NTP Server
Secondary NTP Server
NTP Update Interval
Allow DHCP Option 42
Override NTP Server
Time Zone
Allow DHCP Option 2
to Override Time Zone
Setting
Self-Defined Time
Zone
Date Display Format
Defines the URL or IP address of the NTP server. The phone may obtain the
date and time from the server.
The default setting is "pool.ntp.org".
Defines the URL or IP address of the NTP server. The phone may obtain the
date and time from the server. Allow user to configure 2 NTP server domain
names. GRP will loop through all of the IP addresses resolved from them.
Time interval for updating time from the NTP server. Valid time value is in
between 5 to 1440 minutes.
The default setting is "1440" minutes.
Defines whether DHCP Option 42 should override NTP server or not. When
enabled, DHCP Option 42 will override the NTP server if it's set up on the
LAN. The default setting is "No".
Configures the date/time used on the phone according to the specified time
zone. The default setting is "Auto".
Allows device to get provisioned for Time Zone from DHCP Option 2 in the
local server. The default setting is enabled.
This parameter allows the users to define their own time zone, when "Time
Zone" parameter is set to "Self-Defined Time Zone".
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 with 1 hour ahead (when
daylight saving) which is U.S central time. If it is positive (+) if the local time
zone is west of the Prime Meridian (A.K.A: International or Greenwich
Meridian) and negative (-) if it is east.
M4.1.0,M11.1.0
The 1
st
number indicates Month: 1,2,3.., 12 (for Jan, Feb, .., Dec)
The 2
nd
number indicates the nth iteration of the weekday: (1
Tuesday...)
number indicates weekday: 0,1,2,..,6( for Sun, Mon, Tues, ... ,Sat)
rd
The 3
Therefore, this example is the DST which starts from the First Sunday of
April to the 1
st
Sunday of November.
Configures the date display format on the LCD. The following formats are
supported.
yyyy-mm-dd: 2019-03-02
mm-dd-yyyy: 03-02-2019
dd-mm-yyyy: 02-03-2019
GRP261x/GRP2624/GRP2634 Administration Guide
Version 1.0.5.48
st
Sunday, 3
rd
P a g e
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