Cisco 7961G Administration Guide

1-7
Cisco IP Phone Administration Guide for Cisco CallManager, Cisco IP Phone 7961G/7961G-GE and 7941G/7941G-GE
OL-6966-01
Chapter 1 An Overview of the Cisco IP Phone
What Networking Protocols are Used?
Related Topics
Understanding Interactions with Other Cisco IP Telephony Products, page 2-2
Understanding the Phone Startup Process, page 2-9
Network Configuration Menu, page 4-6
Transmission Control
Protocol (TCP)
TCP is a connection-oriented
transport protocol.
Cisco IP Phones use TCP to connect
to Cisco CallManager and to access
XML services.
Transport Layer
Security (TLS)
TLS is a standard protocol for
securing and authenticating
communications.
When security is implemented,
Cisco IP Phones use the TLS
protocol when securely registering
with Cisco CallManager.
Trivial File Transfer
Protocol (TFTP)
TFTP allows you to transfer files
over the network.
On the Cisco IP Phone, TFTP
enables you to obtain a configuration
file specific to the phone type.
TFTP requires a TFTP server in your
network, which can be automatically
identified from the DHCP server. If
you want a phone to use a TFTP
server other than the one specified by
the DHCP server, you must manually
assign the IP address of the TFTP
server using the Network
Configuration menu on the phone.
User Datagram Protocol
(UDP)
UDP is a connectionless messaging
protocol for delivery of data packets.
Cisco IP Phones transmit and receive
RTP streams, which utilize UDP.
Table 1-1 Supported Networking Protocols on the Cisco IP Phone (continued)
Networking Protocol Purpose Usage Notes

Cisco 7961G Specifications

General

Brand	Cisco
Model	7961G
Category	IP Phone
Language	English