Grandstream Networks GXP2140 User Manual page 57

Headset RX gain
Handset TX gain
Settings -> LCD Display
Backlight Brightness: Active
Backlight Brightness: Idle
Disable Missed Call Backlight
Settings -> Date and Time
NTP Server
Allow DHCP Option 42
Override NTP Server
Time Zone
Self-Defined Time Zone
Date Display Format
FIRMWARE VERSION 1.0.0.17
0dB.
Configures the receiving gain of the headset. The default value is 0dB.
Configures the transmission gain of the handset. The default value is 0
dB.
Configures the LCD brightness when the phone is active. Valid range is
10 to 100 where 100 is the brightest. Default value is 70.
Configures the LCD brightness when the phone is idle. Valid range is 10
to 100 where 0 is off and 100 is the brightest. Default value is 30.
Configures the backlight to be on or off when there is missed call.
Defines the URL or IP address of the NTP server. The phone may obtain
the date and time from the server.
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 "Yes".
Configures the date/time used on the phone according to the specified
time zone.
This parameter allows the users to define their own 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 1st number indicates Month: 1,2,3.., 12 (for Jan, Feb, .., Dec)
The 2nd number indicates the nth iteration of the weekday: (1st Sunday,
rd
Tuesday...)
3
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.
Configures the date display format on the LCD. The following formats are
supported:
GXP2140/GXP2160 USER MANUAL Page 57 of 79