What Networking Protocols Are Used - Cisco 7937G - Unified IP Conference Station VoIP Phone Administration Manual

What Networking Protocols Are Used?

What Networking Protocols Are Used?
The conference station supports several industry-standard and Cisco networking protocols required for
voice communication.
conference station supports.
Table 1-1 Supported Networking Protocols on the Conference Station
Networking Protocol
Cisco Discovery
Protocol (CDP)
Dynamic Host
Configuration Protocol
(DHCP)
Hypertext Transfer
Protocol (HTTP)
Internet Protocol (IP)
Real-Time Transport
Protocol (RTP)
Skinny Client Control
Protocol (SCCP)
Cisco Unified IP Conference Station 7937G Administration Guide for Cisco Unified Communications Manager 6.0
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Table 1-1
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 a
conference station into the network
and have the conference station
become operational without you
needing to manually assign an IP
address or to configure additional
network parameters.
HTTP is the standard way of
transferring information and moving
documents across the Internet and the
web.
IP is a messaging protocol that
addresses and sends packets across
the network.
RTP is a standard protocol for
transporting real-time data, such as
interactive voice and video, over data
networks.
SCCP includes a messaging set that
allows communications between call
control servers and endpoint clients
like IP conference stations. SCCP is
proprietary to Cisco Systems.
provides an overview of the networking protocols that the
Usage Notes
The conference station uses CDP to communicate
information such as auxiliary VLAN ID, per port power
management details, and Quality of Service (QoS)
configuration information with the Cisco Catalyst switch.
DHCP is enabled by default. If disabled, you must manually
configure the IP address, subnet mask, gateway, and a TFTP
server on each conference station locally.
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 information about DCHP
configurations, refer to the "Cisco TFTP" chapter in
Cisco Unified Communications Manager System Guide.
The conference stations uses HTTP for the XML services
and for troubleshooting purposes.
To communicate using IP, network devices must have an
assigned IP address, subnet, and gateway.
IP addresses, subnets, and gateways identifications are
automatically assigned if you are using the conference
station with DHCP. If you are not using DHCP, you must
manually assign these properties to each conference station
locally.
The conference station uses the RTP protocol to
send/ receive real-time voice traffic from other conference
stations and gateways.
The conference station uses SCCP for call control.
Chapter 1 An Overview of the Conference Station
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