Chapter 1 An Overview of the Cisco Unified IP Phone

What Networking Protocols Are Used?

Table 1-1

Supported Networking Protocols on the Cisco Unified IP Phone

 

 

 

Networking Protocol

Purpose

Usage Notes

 

 

 

Bootstrap Protocol (BootP)

BootP enables a network device such as the

If you are using BootP to assign IP addresses

 

 

Cisco Unified IP Phone to discover certain

to the Cisco Unified IP Phone, the BOOTP

 

 

startup information, such as its IP address.

Server option shows “Yes” in the network

 

 

 

configuration settings on the phone.

 

 

 

Cisco Discovery Protocol

CDP is a device-discovery protocol that runs

The Cisco Unified IP Phone uses CDP to

(CDP)

 

on all Cisco-manufactured equipment.

communicate information such as auxiliary

 

 

Using CDP, a device can advertise its

VLAN ID, per port power management details,

 

 

and Quality of Service (QoS) configuration

 

 

existence to other devices and receive

 

 

information with the Cisco Catalyst switch.

 

 

information about other devices in the

 

 

 

 

 

network.

 

 

 

 

Cisco Peer-to-Peer

CPPDP is a Cisco proprietary protocol used to

CPPDP is used by the Peer Firmware Sharing

Distribution Protocol

form a-peer-to-peer hierarchy of devices.

feature.

(CPPDP)

 

CPPDP is also used to copy firmware or other

 

 

 

files from peer devices to neighboring

 

 

 

devices.

 

 

 

 

Dynamic Host Configuration

DHCP dynamically allocates and assigns an

DHCP is enabled by default. If disabled, you

Protocol (DHCP)

IP address to network devices.

must manually configure the IP address,

 

 

DHCP enables you to connect an IP phone

subnet mask, gateway, and a TFTP server on

 

 

each phone locally.

 

 

into the network and have the phone become

 

 

 

 

 

operational without needing to manually

Cisco recommends that you use DHCP

 

 

assign an IP address or configure additional

custom option 150. With this method, you

 

 

network parameters.

configure the TFTP server IP address as the

 

 

 

option value. For additional information

 

 

 

about DHCP configurations, refer to the

 

 

 

“Cisco TFTP” chapter in Cisco

 

 

 

Unified Communications Manager System

 

 

 

Guide.

 

 

 

Hypertext Transfer Protocol

HTTP is the standard way of transferring

Cisco Unified IP Phones use HTTP for the

(HTTP)

 

information and moving documents across the

XML services and for troubleshooting

 

 

Internet and the web.

purposes.

 

 

 

 

IEEE 802.1X

 

The IEEE 802.1X standard defines a

The Cisco Unified IP Phone implements the

 

 

client-server-based access control and

IEEE 802.1X standard by providing support

 

 

authentication protocol that restricts

for the EAP-MD5 option for 802.1X

 

 

unauthorized clients from connecting to a

authentication.

 

 

LAN through publicly accessible ports.

When 802.1X authentication is enabled on the

 

 

 

 

 

Until the client is authenticated, 802.1X

phone, you should disable the PC port and

 

 

access control allows only Extensible

voice VLAN. Refer to the “Supporting

 

 

Authentication Protocol over LAN (EAPOL)

802.1X Authentication on Cisco Unified IP

 

 

traffic through the port to which the client is

Phones” section on page 1-16for additional

 

 

connected. After authentication is successful,

information.

 

 

normal traffic can pass through the port.

 

 

 

 

 

Cisco Unified IP Phone 7970G/7971G-GE Administration Guide for Cisco Unified Communications Manager 7.0

1-4

OL-15299-01

 

 

Page 17 Page 19
Page 18
Image 18
Cisco Systems 7970G, 7971G-GE manual Networking Protocol Purpose Usage Notes, Unified Communications Manager System, Guide
Page 17 Page 19

7970G, 7971G-GE specifications

The Cisco Systems 7971G-GE is a sophisticated IP phone designed for enterprise communication, offering a range of features that enhance productivity and collaboration. As part of the Cisco Unified Communications portfolio, this phone is known for its impressive technology and reliable performance.

One of the main features of the 7971G-GE is its high-resolution color display. The 5-inch LCD screen provides users with a visually appealing and intuitive interface, allowing for easy navigation through menus and contacts. The phone supports up to six lines, making it ideal for users who require multiple lines for simultaneous calls. Users can effortlessly manage calls with the ability to switch between lines and access important call features like hold, transfer, and conference calling.

In terms of audio quality, the Cisco 7971G-GE is equipped with high-definition voice technology. This feature ensures crystal-clear sound during calls, reducing background noise and enhancing the clarity of conversations. The phone also supports wideband audio codecs, enabling a richer voice experience that is particularly valuable in business environments.

The phone is designed with user convenience in mind. It offers programmable buttons that can be customized to suit individual needs, allowing easy access to frequently used functions or contact lists. Additionally, the presence indicator feature lets users see the availability of their colleagues in real-time, promoting more effective communication and collaboration.

Networking capabilities are another strong point of the Cisco 7971G-GE. The phone supports both Power over Ethernet (PoE) and standard Ethernet connectivity. This enables easy deployment without the need for additional power outlets. Moreover, the device is compatible with various Cisco communication platforms, integrating seamlessly with existing Cisco infrastructure, which is essential for businesses looking to upgrade their communications systems.

Security is a crucial consideration for modern enterprises, and Cisco addresses this with robust encryption features that protect voice and video calls. The phone supports secure signaling and media encryption, ensuring that sensitive conversations remain confidential.

Overall, the Cisco Systems 7971G-GE is a feature-rich IP phone that combines advanced technology with user-friendly design. Its high-definition audio, customizable features, and seamless integration with Cisco networks make it a popular choice for businesses seeking to improve their communication systems. With its reliability and performance, the Cisco 7971G-GE continues to support effective collaboration in an increasingly connected world.
Top Page Image Contents