User manual
FIRMWARE VERSION 1.0.5.15 GXP2124 USER MANUAL Page 50 of 71
press HEADSET button to switch to headset. Press it again to
hang up the call. Or press speaker/Handset to switch back to the
previous mode.
• Toggle Headst/Speaker:
When the phone is in idle, press HEADSET button to switch to
Headset mode. The headset icon will display on the left side of
the screen. In this mode, if pressing Speaker button or Line key
to off hook the phone, headset will be used.
When there is an active call, press HEADSET button to toggle
between Headset and Speaker.
Headset Type
Selects headset type from Normal RJ9 headset or Plantronics EHS
headset. The default setting is "Normal".
Always Ring Speaker
Configur
es to enable or disable the speaker to ring when headset is used
on "Toggle Headset/Speaker" mode. If set to "Yes", when the phone is in
Headset "Toggle Headset/Speaker" mode, both headset and speaker will
ring on incoming call. The default setting is "No".
Headset TX gain
Configures t
he transmission gain of the headset. The default value is
0dB.
Headset RX gain Configures the receiving gain of the headset. The default value is 0dB.
Handset TX gain
Configures the transmission gain of the handset. The default value is 0
dB.
Settings -> LCD Display
Backlight Brightness: Active
Configures the LCD backlight brightness level (from 0 to 8) for phone's
active status. The default value is 6.
Backlight Brightness: Idle
Configures the LCD backlight brightness le
vel (from 0 to 8) for phone's
idle status. The default value is 2.
LCD Contrast Configures the LCD contrast level (from 0 to 20). The default value is 10.
Disable Missed Call Backlight
When it's set to "Yes", the LCD backlight will not be turned on when there
is a new missed call. The default setting is "No".
Settings -> Date and Time
NTP Server
Defines the URL or IP address of the NTP server. The phone may obtain
the date and time from the server.
Allow DHCP Option 42
Override NTP Server
Defines wheth
er 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".
Time Zone Configures the date/time used on the phone
according to the specified