Chapter 2 Preparing to Install the Cisco IP Phone on Your Network

Guidelines for Configuring Ports on the Cisco IP Phone models 7902G/7905G/7912G

Redundancy Feature

For redundancy, you can use the Cisco AC adapter even if you are using inline power from the Cisco Catalyst switches. The Cisco IP Phone can share the power load being used from the inline power and external power source. If either the inline power or the external power goes down, the phone can switch entirely to the other power source.

To use this redundancy feature:

1.Set the inline power mode to auto on the Cisco Catalyst switch.

2.Connect the unpowered Cisco IP Phone to the network.

3.Connect the external power supply to the phone after the phone powers up.

Related Topics

•Connecting the Cisco IP Phone to the Network, page 3-4

•Connecting to the Network, page 2-8

•Understanding Interactions with Other Cisco IP Telephony Products, page 2-1

•Providing Power to the Cisco IP Phone, page 2-9

Connecting a Handset to a Cisco IP Phone

Each Cisco IP Phone includes a handset designed especially for use with the phone. These handsets are interchangeable among Cisco IP Phone models. The handsets include a light strip used to indicate voice messages waiting.

To place and answer calls using a handset, plug the included handset into the back of the phone base (see the “Connecting the Cisco IP Phone to the Network” section on page 3-4for details) and pick up the handset.

 

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

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Cisco Systems 7902G, 7905G, 7912G manual Connecting a Handset to a Cisco IP Phone, Redundancy Feature
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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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