Administrator’s Guide for SIP-T2 Series/T4 Series/T5 Series IP Phones198TopicPower Saving ConfigurationPower Saving ConfigurationYou can enable or disable power saving, and set different idle timeout for office hours and off hours. Office Hour: specify the start time and end time of the day’s office hour. You can change the officehours to avoid affecting your work. Idle Timeout: specify the period of time before the IP phone enters power-saving mode.You can specify the following three types of idle timeout: Office Hours Idle TimeOut: specify the idle timeout for office hours. Off Hours Idle TimeOut: specify the idle timeout for non-office hours. User Input Extension Idle TimeOut: specify the idle timeout that applies after you use the IPphone (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 theIP phone, the idle timeout that applies (User Input Extension Idle Timeout or Office Hours/Off Hours IdleTimeOut) 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.TipYou can choose to set a higher User Input Extension Idle TimeOut than the Office Hours Idle TimeOutand Off Hours Idle TimeOut so that the phone does not enter the power-saving mode too often after youuse the phone.The following table lists the parameters you can use to configure power saving.Parameter features.power_saving.intelligent_mode .cfgDescriptionIt enables or disables the power saving intelligent mode.Note: It is not applicable to T19(P) E2 IP phones.PermittedValues0-Disabled, the IP phone stays in power-saving mode even if the office hour arrivesthe next day.1-Enabled, the IP phone will automatically identify the office hour and exitpower-saving mode once the office hour arrives the next day.Default 1Parameter features.power_saving.enable .cfgDescriptionIt enables or disables the power saving feature.Note: It is not applicable to T19(P) E2 IP phones.PermittedValues0-Disabled, the IP phone will automatically enter power-saving mode to protect the screenwhen the phone is inactive for 72 hours. That is, the color screen phones will turn off the