Administrator’s Guide for SIP-T2 /T3 /T4 /T5 /CP920 IP Phones
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message, or you press a key on the phone/EXP50/EXP43 or tap the touch screen (touch screen is only applicable
to T57W/T48U/T48S/T48G phones). The power saving is not applicable to T30P/T30/T19(P) E2 phones.
Note
: If the
is enabled on your phone, the power-saving mode will still occur. For example, if a screen saver
is configured to display after the phone has been idle for 5 minutes, and the power-saving mode is configured to turn off the
backlight and screen after the phone has been idle for 15 minutes, the backlight and screen will be turned off after the screen
saver displays for 10 minutes.
Topic
Power Saving Configuration
You can enable or disable power saving, and set the different idle timeout for office hours and off hours.
l
Office Hour
: specify the start time and end time of the day’s office hour. You can change the office hours to avoid
affecting your work.
l
Idle Timeout
: specify the period of time before the IP phone enters the power-saving mode.
You can specify the following three types of idle timeout:
l
Office Hours Idle TimeOut
: specify the idle timeout for office hours.
l
Off Hours Idle TimeOut
: specify the idle timeout for non-office hours.
l
User Input Extension Idle TimeOut
: specify the idle timeout that applies after you use the IP phone (for example,
press a key on the phone or pick up/hang up the handset).
By default, the Office Hours Idle Timeout is much longer than the Off Hours Idle TimeOut. If you use the IP phone,
the idle timeout that applies (User Input Extension Idle Timeout or Office Hours/Off Hours Idle TimeOut) is the
timeout with the highest value.
If the phone has an incoming call or new message, the User Input Extension Idle TimeOut is ignored.
Tip
: You can choose to set a higher User Input Extension Idle TimeOut than the Office Hours Idle TimeOut and Off Hours Idle
TimeOut so that the phone does not enter the power-saving mode too often after you use the phone.
The following table lists the parameters you can use to configure power saving.
Parameter
features.power_saving.intelligent_mode
<y0000000000xx>.cfg
Description
It enables or disables the power saving intelligent mode.
Permitted
Values
0
-Disabled, the phone stays in power-saving mode even if the office hour arrives the next day.
1
-Enabled, the phone automatically identifies the office hour and exits power-saving mode once the
office hour arrives the next day.
Default
1
Supported
Devices
All phones except T30P/T30/T19(P) E2
Parameter
features.power_saving.enable
<y0000000000xx>.cfg
Description
It enables or disables the power saving feature.
Permitted
Values
0
-Disabled, the phone automatically enters the power-saving mode to protect the screen when the
phone is inactive for 72 hours. That is, the color screen phones will turn off the backlight and screen,
and the black-and-white screen phones will only turn off the backlight. Image persistence may be
caused by LCD.
1
-Enabled
Default
1
Supported
All phones except T30P/T30/T19(P) E2
