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Cisco Unified IP Phone Administration Guide for Cisco Unified Communications Manager 8.6 (SCCP and SIP)
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Chapter 5 Configuring Features, Templates, Services, and Users
Enabling EnergyWise on the Cisco Unified IP Phone
Procedure
Step 1 From Cisco Unified Communications Manager Administration, choose System > Enterprise
Parameters.
The Enterprise Parameters Configuration window appears.
Step 2 In the CCMUser Parameters area, specify whether a parameter appears on the User Options web pages
by choosing one of these values from the Parameter Value drop-down list box for the parameter:
• True—Option displays on the User Options web pages (default except for Show Ring Settings,
Show Line Text Label, and Show Call Forwarding).
• False—Option does not display on the User Options web pages.
• Show All Settings—All call forward settings display on the User Options web pages (default).
• Hide All Settings—No call forward settings display on the User Options web pages.
• Show Only Call Forward All—Only call forward all calls displays on the User Options web pages.
Enabling EnergyWise on the 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 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.
Table 5-3 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.