Chapter 1 An Overview of Cisco IP Communicator
Supported Networking Protocols
1-8
Cisco IP Communicator Administration Guide for Cisco CallManager
OL-4698-01
Real-Time Transport
(RTP)
RTP is a standard for
using UDP to transport
real-time data, such as
interactive voice and
video, over data networks.
Cisco IP Communicator uses the RTP protocol
to send and receive real-time voice traffic from
other phone devices and gateways.
Transmission Control
Protocol (TCP)
TCP is a
connection-oriented
transport protocol in the
IP family.
Cisco IP Communicator uses TCP to connect to
Cisco CallManager.
Trivial File Transfer
Protocol (TFTP)
TFTP allows you to
transfer files over the
network.
Cisco IP Communicator uses TFTP to obtain the
configuration file, LDAP Directories
configuration, and dialing rules.
TFTP requires a TFTP server in your network,
which can be automatically identified from the
DHCP server. If more than one TFTP server is
running in your network, you must manually
assign a TFTP server to each application locally.
HyperText Transfer
Protocol (HTTP)
HTTP uses TCP to
transfer web content over
the Internet.
Cisco IP Communicator users HTTP to obtain
the configuration file, LDAP Directories
configuration, dialing rules, and XML services.
User Datagram Protocol
(UDP)
UDP is a connectionless
messaging protocol in the
IP family used for
delivery of data packets.
Cisco IP Communicator receives and processes
UDP messages.
Lightweight Directory
Access Protocol
(LDAP)
LDAP is a protocol for
accessing directories.
Cisco IP Communicator can use LDAP to search
for names and phone numbers.
eXtensible Markup
Language (XML)
XML is a markup
language for documents
containing structured
information.
Cisco IP Communicator can access Cisco XML
web services.
Table 1-2
Supported networking protocols for Cisco IP Communicator
Networking Protocol
Purpose
Usage Notes
