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Cisco 7800 Series Administrator's Guide

Cisco 7800 Series
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Power Save Plus (EnergyWise)
The Cisco IP Phone supports Cisco EnergyWise (Power Save Plus) mode. When your network contains
an EnergyWise (EW) controller (for example, a Cisco switch with the EnergyWise feature enabled),
you can configure these phones to sleep (power down) and wake (power up) on a schedule to further
reduce power consumption.
The Cisco IP Phone 7811 does not support Power Save Plus.Note
Set up each phone to enable or disable the EnergyWise settings. If EnergyWise is enabled, configure
a sleep and wake time, as well as other parameters. These parameters are sent to the phone as part of
the phone configuration XML file.
Supported Network Protocols
Cisco IP Phones support several industry-standard and Cisco network protocols that are required for voice
communication. The following table provides an overview of the network protocols that the phones support.
Table 8: Supported Network Protocols on the Cisco IP Phone
Usage NotesPurposeNetwork Protocol
BootP enables a network device, such as
the Cisco IP Phone, to discover certain
startup information, such as its IP address.
Bootstrap Protocol (BootP)
The Cisco IP Phone uses CAST as
an interface between CUVA and
Cisco Unified Communications
Manager using the Cisco IP Phone
as a SIP proxy.
The CAST protocol allows IP phones and
associated applications behind the phone
to discover and communicate with the
remote endpoints without requiring
changes to the traditional signaling
components like Cisco Unified
Communications Manager and gateways.
The CAST protocol allows separate
hardware devices to synchronize related
media and it allows PC applications to
augment nonvideo-capable phones to
become video enabled using the PC as
the video resource.
Cisco Audio Session
Tunneling (CAST)
The Cisco IP Phone uses CDP to
communicate information such as
auxiliary VLAN ID, per port power
management details, and Quality of
Service (QoS) configuration
information with the Cisco Catalyst
switch.
CDP is a device-discovery protocol that
runs on all Cisco-manufactured
equipment.
A device can use CDP to advertise its
existence to other devices and receive
information about other devices in the
network.
Cisco Discovery Protocol
(CDP)
Cisco IP Phone 7800 Series Administration Guide for Cisco Unified Communications Manager
10
Supported Network Protocols

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Cisco 7800 Series Specifications

General IconGeneral
WirelessNo
Video SupportNo
PoEYes, 802.3af/at
Audio Codec SupportG.711, G.722, G.729, iLBC
Network ProtocolsSIP, SDP, IPv4, IPv6, UDP, TCP, DNS, TFTP, HTTP, HTTPS, DHCP
Security Features802.1X, TLS, SRTP
Power OptionsPoE
Headset Port3.5mm
ButtonsLine keys, navigation cluster, softkeys, mute, speakerphone, headset, volume control
BluetoothNo
Ethernet SwitchYes, 2-port 10/100/1000
USB PortYes, for headset (7875)

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