Cisco IP Communicator Administration Manual page 31

Chapter 1 An Overview of Cisco IP Communicator
Supported Networking Protocols
Table 1-2 Supported networking protocols for Cisco IP Communicator
Networking Protocol
Cisco Discovery
Protocol (CDP)
Dynamic Host
Configuration Protocol
(DHCP)
Internet Protocol (IP)
OL-4698-01
Cisco IP Communicator supports several industry-standard and Cisco networking
protocols required for voice communication, as described in
Purpose
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.
DHCP dynamically
allocates and assigns an IP
address to network
devices.
DHCP enables you to
connect an IP device into
the network and have the
device become
operational without you
needing to manually
assign a TFTP server or to
configure additional
network parameters.
IP is a messaging protocol
that addresses and sends
packets across the
network.
Cisco IP Communicator Administration Guide for Cisco CallManager
Supported Networking Protocols
Usage Notes
Cisco IP Communicator uses CDP to identify
itself to Cisco Emergency Responder (CER), an
application which provides emergency 911 dialing
support.
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 supported DCHP configurations, see
Cisco CallManager System Guide.
To communicate using IP, network devices
must have an assigned IP address, subnet, and
gateway.
Table 1-2.
1-7