Specifications

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Cisco Unified IP Phone 7906G and 7911G for Cisco Unified Communications Manager 8.0
OL-21033-01
Chapter 1 An Overview of the Cisco Unified IP Phone
What Networking Protocols are Used?
Table 1-2 Supported Networking Protocols on the Cisco Unified IP Phone
Networking Protocol Purpose Usage Notes
Bootstrap Protocol
(BootP)
BootP enables a network device
such as the Cisco Unified IP Phone
to discover certain startup
information, such as its IP address.
If you are using BootP to assign IP addresses to the
Cisco Unified IP Phone, the BOOTP Server option shows
“Yes” in the network configuration settings on the phone.
Cisco Discovery
Protocol (CDP)
CDP is a device-discovery protocol
that runs on all Cisco-manufactured
equipment.
Using CDP, a device can advertise
its existence to other devices and
receive information about other
devices in the network.
The Cisco Unified 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.
Cisco Peer-to-Peer
Distribution Protocol
(CPPDP)
CPPDP is a Cisco proprietary
protocol used to form a peer-to-peer
hierarchy of devices. CPPDP is also
used to copy firmware or other files
from peer devices to neighboring
devices.
CPPDP is used by the Peer Firmware Sharing feature.
Dynamic Host
Configuration Protocol
(DHCP)
DHCP dynamically allocates and
assigns an IP address to network
devices.
DHCP enables you to connect an IP
phone into the network and have the
phone become operational without
your needing to manually assign an
IP address or to configure additional
network parameters.
DHCP is enabled by default. If disabled, you must manually
configure the IP address, subnet mask, gateway, and a TFTP
server on each phone locally.
Cisco recommends that you use DHCP custom option 150.
With this method, you configure the TFTP server IP address
as the option value. For additional information about DHCP
configurations, refer to the Dynamic Host Configuration
Protocol and Cisco TFTP in the
Cisco Unified Communications Manager System Guide.
HyperText Transfer
Protocol (HTTP)
HTTP is the standard way of
transferring information and
moving documents across the
Internet and the World Wide Web.
The Cisco Unified IP Phones use HTTP for the XML services
and for troubleshooting purposes.
Cisco Unified IP Phones do not support the use of IPv6
addresses in the URL. You cannot use literal IPv6 addresses
in the URL or hostname which maps to a IPv6 address in the
directories and services button.
Hypertext Transfer
Protocol Secure
(HTTPS)
Hypertext Transfer Protocol Secure
(HTTPS) is a combination of the
Hypertext Transfer Protocol with
the SSL/TLS protocol to provide
encryption and secure identification
of servers.
Web applications with both HTTP and HTTPS support have
two URLs configured. Cisco Unified IP Phones that support
HTTPS choose the HTTPS URL out of the two URLs.