Power Outage; Power Reduction; Network Protocols - Cisco Unified IP Phone 8941 Administration Manual

Network Protocols

Document topics
Cisco IOS Software

Power Outage

Your access to emergency service through the phone requires that the phone receive power. If a power
interruption occurs, service or emergency calling service dialing does not function until power is restored. If
a power failure or disruption occurs, you may need to reset or reconfigure the equipment before you can use
service or emergency calling service dialing.

Power Reduction

You can reduce the amount of energy that the Cisco Unified IP Phone 8941 and 8945 consumes by scheduling
when the phone goes into power-save mode. In power-save mode, the backlight on the screen is not lit when
the phone is not in use. The phone remains in power-save mode for the scheduled duration or until the user
lifts the handset or presses any button. In the Phone Configuration window on Cisco Unified Communications
Manager Administration, configure the following parameters.
• Days Backlight Not Active: Specify the days that the backlight remains inactive.
• Backlight on Time: Schedule the time of day that the backlight automatically activates on the days listed
• Backlight on Duration: Indicates the length of time that the backlight is active after the backlight is
• Backlight Idle Timeout: Defines the period of user inactivity on the phone before the backlight is turned
Network Protocols
Cisco Unified IP Phones support several industry-standard and Cisco network protocols required for voice
communication. The following table provides an overview of the network protocols that the Cisco Unified
IP Phones 8941 and 8945 support.
Cisco Unified IP Phone 8941 and 8945 Administration Guide for Cisco Unified Communications Manager 10.0
(SCCP and SIP)
8
in the off schedule.
enabled by the programmed schedule.
off.
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