Cisco 6800 Series Administration Manual page 31
Multiplatform phones
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Also See for 6800 Series:
- User manual (222 pages) ,
- Administration manual (194 pages) ,
- Provisioning manual (104 pages)
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About the Cisco IP Phone
Table 5: Supported Network Protocols on the Cisco IP Phone
Network Protocol
Bootstrap Protocol (BootP)
Cisco Discovery Protocol (CDP)
Domain Name Server (DNS)
Dynamic Host Configuration
Protocol (DHCP)
Hypertext Transfer Protocol
(HTTP)
Hypertext Transfer Protocol Secure
(HTTPS)
Purpose
BootP enables a network device,
such as the Cisco IP Phone, to
discover certain startup
information, such as its IP address.
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.
DNS translates domain names to
IP addresses.
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 the need to manually assign
an IP address or to configure
additional network parameters.
HTTP is the standard protocol for
transfer of information and
movement of documents across the
Internet and the web.
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.
Cisco IP Phone 6800 Series Multiplatform Phones Administration Guide
Network Protocols
Usage Notes
—
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.
Cisco IP Phones have a DNS client
to translate domain names into IP
addresses.
DHCP is enabled by default. If
disabled, you must manually
configure the IP address, subnet
mask, and gateway on each phone
locally.
We recommend that you use the
DHCP custom option 160, 159.
Cisco IP Phones use HTTP for
XML services, provisioning,
upgrade and for troubleshooting
purposes.
Web applications with both HTTP
and HTTPS support have two
URLs configured. Cisco IP Phones
that support HTTPS choose the
HTTPS URL.
A lock icon is displayed to the user
if the connection to the service is
via HTTPS.
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