Chapter 1 An Overview of the Cisco IP Phone

What Networking Protocols Are Used?

Table 1-1 Supported Networking Protocols on the Cisco IP Phone (continued)

Networking Protocol

Purpose

Usage Notes

 

 

 

Internet Protocol (IP)

IP is a messaging protocol that addresses

To communicate using IP,

 

and sends packets across the network.

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 Cisco IP Phone with

 

 

Dynamic Host Configuration

 

 

Protocol (DHCP). If you are not

 

 

using DHCP, you must manually

 

 

assign these properties to each

 

 

phone locally.

 

 

 

Real-Time Transport

RTP is a standard for transporting

Cisco IP Phones use the RTP

(RTP)

real-time data, such as interactive voice

protocol to send and receive

 

and video, over data networks.

real-time voice traffic from other

 

 

phones and gateways.

 

 

 

Transmission Control

TCP is a a connection-oriented transport

Cisco IP Phones use TCP to

Protocol (TCP)

protocol.

connect to Cisco CallManager

 

 

and to access XML services.

 

 

 

Trivial File Transfer

TFTP allows you to transfer files over the

TFTP requires a TFTP server in

Protocol (TFTP)

network.

your network, which can be

 

On the Cisco IP Phone, TFTP enables

automatically identified from the

 

DHCP server. If more than one

 

you to obtain a configuration file specific

 

to the phone type.

TFTP server is running in your

 

network, you must manually

 

 

 

 

assign a TFTP server to each

 

 

phone locally.

 

 

 

User Datagram Protocol

UDP is a connectionless messaging

Cisco IP Phones receive and

(UDP)

protocol for delivery of data packets.

process UDP messages.

 

 

 

Related Topics

•Modifying DHCP Settings, page 4-9

•Configuring IP Settings, page 4-15

 

 

Cisco IP Phone Administration Guide for Cisco CallManager 3.3, Cisco IP Phones 7902G/7905G/7912G

 

 

1-8

 

OL-6313-01

 

 

 

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Cisco Systems 7912G, 7902G, 7905G manual Related Topics, Modifying Dhcp Settings, Configuring IP Settings
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7902G, 7912G, 7905G specifications

Cisco Systems is a leading provider of networking and telecommunications equipment, and among its extensive range of products, the Cisco 7900 Series of IP phones has made a notable impact in enterprise communication. Key models in this series include the Cisco 7905G, 7912G, and 7902G, each designed to enhance productivity through advanced features, intuitive interfaces, and robust technology.

The Cisco 7905G is designed for basic telephony needs and is ideal for administrative environments or areas with high call volumes. It features a large single-line LCD display, providing users with clear visibility of call information. The phone supports Power over Ethernet (PoE), making installation easier and reducing clutter by eliminating the need for an additional power supply. Its hands-free and headset support enhances user convenience, allowing for easy multitasking during calls.

Moving on to the Cisco 7912G, this model is designed for more demanding communication requirements. It features a larger, backlit display, providing improved visibility in various lighting conditions. The Cisco 7912G supports up to 12 programmable line or feature keys, giving users the flexibility to tailor the phone to their specific needs. Additionally, it incorporates advanced audio technologies, such as wideband audio for enhanced voice clarity and a built-in speakerphone, allowing users to communicate effectively in busy environments.

The Cisco 7902G, while offering basic features, is a reliable choice for users who need straightforward, cost-effective telephony solutions. It features an intuitive design with three dedicated buttons for line status, a built-in speakerphone, and support for wideband audio. The phone is geared for users who require essential telephony features without the complexity of additional functionalities, making it suitable for front-desk and general office use.

Overall, these models within the Cisco 7900 series exemplify the company's commitment to providing high-quality enterprise communication tools. With a focus on advanced audio technologies, user-friendly interfaces, and adaptability to various business environments, the Cisco 7905G, 7912G, and 7902G cater to the diverse needs of modern organizations. As companies continue to pursue seamless communication, these IP phones remain a valuable asset in their telephony infrastructure, enhancing collaboration and productivity among teams everywhere.
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