Chapter 9 Troubleshooting the Cisco IP Phone Models 7905G and 7912G

Resolving Problems

Symptom There is no dial tone on the phone.

Possible Cause No user ID was entered, or the UID parameter is set to 0 or a period (.).

Recommended Action Verify the UID parameter value and enter the correct user ID.

Symptom The phone plays an incorrect busy tone, call waiting tone, dial tone, reorder tone, or ringback tone.

Possible Cause There is an incorrect setting for the BusyTone, CallWaitTone, DialTone, DialTone2, RingBackTone, or ReorderTone parameter.

Recommended Action Verify that these parameters are set correctly for your country. For more information, see the “BusyTone, CallWaitTone, DialTone, DialTone2, and RingBackTone Parameter Details” section on page 8-28or the “ReorderTone Parameter Details” section on page 8-30.

Symptom Cisco IP Phone 7905G resets repeatedly after upgrading its firmware image.

Possible Cause The phone cannot perform image authentication, but it has upgraded to a .SBIN firmware image file instead of to a .ZUP image file. (A

.SBIN firmware image file requires that the phone be able to perform image authentication.)

Recommended Action Upgrade the phone to a .ZUP image file. For more information, see the “Upgradecode Parameter Detail” section on page 8-41.

Symptom The Cisco logo does not appear properly on the web page for a phone.

Possible Cause You are using Netscape version 4.78 or earlier.

Recommended Action When accessing a phones web page, use Netscape release 6.0 or later, or use Internet Explorer.

 

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Cisco Systems 7905G, 7912G manual Resolving Problems

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.