Chapter 6 Troubleshooting the Cisco IP Phone

Resolving Startup Problems

Problem

Explanation

 

 

After the phone is connected to power, the

The phone has a duplicate IP address. See the “Assigning

phone handset indicator light is steady red

an IP Address” section on page 4-15.

and the Menu button is steady green.

 

 

 

The phone Hold button flashes red and the

The phone’s firmware is being upgraded. After the

Menu button flashes green at the same

upgrade, all LEDs on the phone should be off.

time.

 

 

 

Resolving Startup Problems

After installing a Cisco IP Phone into your network and adding it to

Cisco CallManager, the phone should start up as described in the “Verifying the Phone Startup Process” section on page 3-9. If the phone does not start up properly, these sections can help you resolve the problem:

•Symptom: Cisco IP Phone Does Not Start Up, page 6-12

•Symptom: Cisco IP Phone Not Registering with Cisco CallManager, page 6-13

•Symptom: Cisco IP Phone Resetting, page 6-18

Note Any procedures that refer to an LCD screen display problem apply only to the Cisco IP Phone models 7905G/7912G.

Symptom: Cisco IP Phone Does Not Start Up

If you connect a Cisco IP Phone into the network port, the LEDs should light up and, on the Cisco IP Phone models 7905G/7912G, messages should appear on the LCD display. (See the “Verifying the Phone Startup Process” section on page 3-9for information on the normal startup process.) If the phone does not proceed through this normal startup process, you must determine if the phone is functional or if anything else in the configuration is causing the phone to not start up properly.

 

 

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

 

 

6-12

 

OL-6313-01

 

 

 

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Cisco Systems 7902G, 7905G Resolving Startup Problems, Symptom Cisco IP Phone Does Not Start Up, An IP Address section on
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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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