EnergyWise Setup on Cisco Unified IP Phone


To reduce power consumption, you can configure the phone to sleep (power down) and wake (power up) if your system includes an EnergyWise controller (for example, a Cisco Switch with the EnergyWise feature enabled).


You configure settings in Cisco Unified Communications Manager Administration to enable EnergyWise and configure sleep and wake times. These parameters are closely tied to the phone display configuration parameters.


When EnergyWise is enabled and a sleep time is set, the phone sends a request to the switch to wake it up at the configured time. The switch sends back either an acceptance or a rejection of the request. If the switch rejects the request or if the switch does not reply, the phone does not power down. If the switch accepts the request, the idle phone goes to sleep, reducing its power consumption to a predetermined level. A phone that is not idle sets an idle timer, and goes to sleep after the timer expires.


At the scheduled wake time, the system restores power to the phone, waking it up. To wake up the phone before the wake time, you must power on the phone from the switch. For more information, see the switch documentation.


The following table explains the Cisco Unified Communications Manager Administration fields that control the EnergyWise settings. You configure these fields in Cisco Unified Communications Manager Administration by choosing Device > Phone. You can also configure EnergyWise parameters in the Enterprise Phone Configuration and Common Phone Profile Configuration windows.


Field

Description


Enable Power Save Plus


Selects the schedule of days for which the phone powers off. Select multiple days by pressing and holding the Control key while clicking on the days for the schedule.

 

By default, no days are selected.

 

When Enable Power Save is checked, you receive a message to warn about emergency (e911) concerns.

 

Caution

While Power Save Plus mode (hereafter, the mode) is in effect, endpoints configured for the mode are disabled for emergency calling and from receiving inbound calls. By selecting this mode, you agree to the following: (i) you are taking full responsibility for providing alternate methods for emergency calling and receiving calls while the mode is in effect; (ii) Cisco has no liability in connection with your selection of the mode and all liability in connection with enabling the mode is your responsibility; and (iii) you will inform users of the effects of the mode on calls, calling and otherwise.

 

Note

To disable Power Save Plus, you must uncheck the Allow EnergyWise Overrides check box. Leaving the Allow EnergyWise Overrides checked with no days selected in the Enable Power Save Plus field does not disable Power Save Plus.


Phone On Time

 
Determines when the phone automatically turns on for the days selected in the Enable Power Save Plus field.


Enter the time in this field in 24 hour format, where 00:00 is midnight.


For example, to automatically power up the phone at 7:00 a.m. (0700), enter 7:00. To power up the phone at 2:00 p.m. (1400), enter 14:00.


The default value is blank, which means 00:00.
                                 


Phone Off Time


The time of day that the phone powers down for the days selected in the Enable Power Save Plus field. If the Phone On Time and the Phone Off Time fields contain the same value, the phone does not power down.

 

Enter the time in this field in 24 hour format, where 00:00 is midnight.

 

For example, to automatically power down the phone at 7:00 a.m. (0700), enter 7:00. To power down the phone at 2:00 p.m. (1400), enter 14:00.

 

The default value is blank, which means 00:00

.  

 

Phone Off Idle Timeout


The length of time that the phone must be idle before the phone powers down. 


The range of the field is 20 to 1440 minutes. 


The default value is 60 minutes.

 

Enable Audible Alert

 

When enabled, instructs the phone to play an audible alert starting at 10 minutes before to the time specified in the Phone Off Time field.

 

The audible alert uses the phone ringtone, which briefly plays at specific times during the 10-minute alerting period. The alerting ringtone plays at the user-designated volume level. The audible alert schedule is:

  • 10 minutes before power down, play the ringtone four times.
  • 7 minutes before power down, play the ringtone four times.
  • 4 minutes before power down, play the ringtone four times.
  • 30 seconds before power down, play the ringtone 15 times or until the phone powers down. 


This check box applies only if the Enable Power Save Plus list box has one or more days selected.

 

 

EnergyWise Domain

 

The EnergyWise domain that the phone is in. The maximum length is 127 characters.

 

 

 EnergyWise Secret

 
The security secret password that is used to communicate with the endpoints in the EnergyWise domain. 


The maximum length is 127 characters.

 
Allow EnergyWise Overrides

 
This check box determines if you will allow the EnergyWise domain controller policy to send power level updates to the phones. The following conditions apply:

 

  1. If the phone is in full power save mode and the level is set to any standby level, the phone will go to Power Save when idle and remain in that mode until the next Cisco Unified CM scheduled power level change or user interaction.
     
  2. If the phone is in Power Save or at full power and the level is set to any nonoperational level, the phone will power down when idle and remain powered off until the switch reapplies power or the user wakes the phone.

 

For example, assume the Phone Off Time is set to 22:00 (10:00 p.m.), the value in the Phone On Time field is 06:00 (6:00 a.m.), and the Enable Power Save Plus has one or more days selected.


  • If EnergyWise directs the phone to turn off at 20:00 (8:00 p.m.), then the directive remains in effect until the configured Phone On Time at 6:00 a.m., assuming no phone user intervention occurs.
  • At 6 a.m., the phone will turn on and resume receiving its power level changes from the settings in Cisco Unified Communications Manager Administration.
  • To change the power level on the phone again, EnergyWise must reissue a new power level change command.

 

Note

To disable Power Save Plus, you must uncheck the Allow EnergyWise Overrides check box. Leaving the Allow EnergyWise Overrides checked with no days selected in the Enable Power Save Plus field does not disable Power Save Plus.