AudioCodes 400HD Series - Configuring Phone Screen Settings; Table 3-14: Screen Contrast Parameters [445 HD, 450 HD, C450 HD and RX50]

Administrator's Manual 3. Manual Configuration of a Single IP Phone
Version 3.4.4 61 400HD IP Phones Series - Teams Compatible
3.3.6 Configuring Phone Screen Settings
This section shows how to configure phone screen settings using the Configuration File.
Note: The 445HD, 450HD, C450HD and RX50 screen contrast parameters apply only if
Microsoft Skype for Business' online Power Save Mode feature is enabled, i.e., the
parameters apply only to online users. They do not apply to Skype for Business on
premises users. Three inband Microsoft parameters control Skype for Business's online
Power Save mode:
• EnablePowerSaveMode [True] = the phone will use these Skype for Busingess
timeout values instead of 'lcd_active_mode_timeout'.
• PowerSaveDuringOfficeHoursTimeoutMS [15 minutes]
• PowerSavePostOfficeHoursTimeoutMS [5 minutes]
If inband provisioning is performed and all three Microsoft parameters are provisioned
and the first is enabled:
• The second determines 'active mode' timout if in working hours.
• The third determines 'active mode' timout if in non-working hours.
The screen will change to 'night mode' only if the user is in non-working hours, i.e., the
screen will never go lower than 'dimmer mode' when the user is in working hours. In the
morning, when working hours start, the screen automatically changes from 'night mode'
to 'dimmer mode'. The phone gets the user's work hours from Microsoft Exchange server.
Users can configure a brightness level of High, Medium or Low for Active mode, Dimmer
mode and Night mode. By default, the phone enters Dimmer mode after 15 minutes of
inactivity; by default, the phone enters Night mode after another 60 minutes of inactivity.
If the capability to determine working hours is configured, the phone only enters Night
mode during non-working hours.
Dimmer mode is less bright than Active mode. Night mode is lowest. When a phone
enters Dimmer mode, LCD_Dimmer_mode_timeout starts. When it expires, the phone
switches to Night mode (which is allowed only during non-working hours if working hours
are available). Any phone operation such as an incoming call or touching the screen
causes the phone to exit Power Saving mode and revert to the regular screen brightness
level.
 To configure phone screen settings:
• Open the Configuration File page (Management tab > Manual Update >
Configuration File) and use the tables below as reference.
Table 3-14: Screen Contrast Parameters [445HD, 450HD, C450HD and RX50]
Parameter Description
personal_settings/lcd_active_mode_brightness
Configures the brightness of the screen
when its in 'active mode', which is - for
example -
after a calendar reminder
pops up, or when a call comes in, or
after you press a key on the dialpad,
etc.
• LOW
• MEDIUM
•
HIGH (default)
personal_settings/lcd_active_mode_brightness_high
Configures the HIGH level of brightness
when the screen is in 'active mode'.
Minimum: 0. Maximum: 31 (default).