Cisco 7906G Administration Guide

1-7
Cisco Unified IP Phone 7906G and 7911G Administration Guide for Cisco Unified CallManager 5.1
OL-11515-01
Chapter 1 An Overview of the Cisco Unified IP Phone
What Networking Protocols Are Used?
Real-Time Control
Protocol (RTCP
RTCP works with RTP to provide
QoS data (such as jitter, latency, and
round trip delay) on RTP streams.
RTCP is disabled by default, but you
can enable it on a per phone basis
using Cisco
Unified CallManager.
For more information, see the
“Network Configuration Menu”
section on page 4-25.
Real-Time Transport
Protocol (RTP)
RTP is a standard protocol for
transporting real-time data, such as
interactive voice and video, over data
networks.
Cisco Unified IP Phones use the RTP
protocol to send and receive
real-time voice traffic from other
phones and gateways.
Session Description
Protocol (SDP)
SDP is the portion of the SIP protocol
that determines which parameters are
available during a connection
between two endpoints. Conferences
are established using only the SDP
capabilities that are supported by all
endpoints in the conference.
SDP capabilities, such as codec
types, DTMF detection, and comfort
noise, are normally configured on a
global basis by Cisco Unified
CallManager or Media Gateway in
operation. Some SIP endpoints may
allow these parameters to be
configured on the endpoint itself.
Session Initiation
Protocol (SIP)
SIP is an emerging standard for
setting up telephone calls,
multimedia conferencing, and other
types of communications on the
Internet.
You can configure the
Cisco
Unified IP Phone to use either
SCCP or SIP.
Skinny Client Control
Protocol (SCCP)
SCCP includes a messaging set that
allows communications between call
control servers and endpoint clients
such as IP Phones. SCCP is
proprietary to Cisco Systems.
You can configure the
Cisco
Unified IP Phone to use either
SCCP or Session Initiation Protocol
(SIP).
Transmission Control
Protocol (TCP)
TCP is a connection-oriented
transport protocol.
Cisco Unified IP Phones use TCP to
connect to
Cisco
Unified CallManager and to
access XML services.
Table 1-1 Supported Networking Protocols on the Cisco Unified IP Phone (continued)
Networking Protocol Purpose Usage Notes

Cisco 7906G Specifications

General

Brand	Cisco
Model	7906G
Category	IP Phone
Language	English