G/7941G-Ge? - Cisco 7961G - IP Phone VoIP Administration Manual

Chapter 1 An Overview of the Cisco Unified IP Phone
Table 1-1 Supported Networking Protocols on the Cisco Unified IP Phone (continued)
Networking Protocol
Real-Time Control
Protocol (RTCP)
Skinny Client Control
Protocol (SCCP)
Session Initiation
Protocol (SIP)
Transmission Control
Protocol (TCP)
Transport Layer
Security (TLS)
Trivial File Transfer
Protocol (TFTP)
Cisco Unified IP Phone 7961G/7961G-GE and 7941G/7941G-GE Administration Guide for Cisco Unified CallManager
OL-11528-01
Purpose
RTCP works in conjunction with
RTP to provide QoS data (such as
jitter, latency, and round trip delay)
on RTP streams.
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.
SIP is an emerging standard for
setting up telephone calls,
multimedia conferencing, and other
types of communications on the
Internet.
TCP is a connection-oriented
transport protocol.
TLS is a standard protocol for
securing and authenticating
communications.
TFTP allows you to transfer files
over the network.
On the Cisco Unified IP Phone,
TFTP enables you to obtain a
configuration file specific to the
phone type.
What Networking Protocols are Used?
Usage Notes
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 4-27.
Cisco Unified IP Phones use SCCP
for call control. You can configure
the Cisco Unified IP Phone to use
either SCCP or Session Initiation
Protocol (SIP).
Cisco Unified IP Phones use SCCP
for call control. You can configure
the Cisco Unified IP Phone to use
either SCCP or SIP.
Cisco Unified IP Phones use TCP to
connect to Cisco
Unified CallManager and to access
XML services.
When security is implemented, Cisco
Unified IP Phones use the TLS
protocol when securely registering
with Cisco Unified CallManager.
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.
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