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

Understanding the Phone Startup Process

After the phone obtains one of the .cnf.xml files or the .cnf file, the Cisco IP Phone 7902G requests the profile file ffxxxxxxxxxxxx, the Cisco IP Phone 7905G requests the profile file ldxxxxxxxxxxxx, and the

Cisco IP Phone 7912G requests the profile file gkxxxxxxxxxxxx, where each xx is the two-digit lowercase hexadecimal representation of each integer in the phone’s MAC address. If a phone cannot find this profile file, it requests the profile file ffdefault.cfg for the Cisco IP Phone 7902G, the profile file lddefault.cfg for the Cisco IP Phone 7905G, or the profile file gkdefault.cfg for the Cisco IP Phone 7912G. For more information about profile files, see Appendix A, “Additional Configuration Methods, Parameters, and Procedures.”

After the phone finds one of the profile files, or if it cannot find a profile file, it continues with its startup process.

Related Topics

•Understanding the Phone Startup Process, page 2-4

•Resolving Startup Problems, page 6-12

Contacting Cisco CallManager

The configuration file defines how the Cisco IP Phone communicates with Cisco CallManager. After obtaining the file from the TFTP server, the phone attempts to make a TCP connection to the highest priority Cisco CallManager on the list.

If the phone was manually added to the database, Cisco CallManager identifies the phone. If the phone was not manually added to the database and auto-registration is enabled in Cisco CallManager, the phone attempts to auto-register itself in the Cisco CallManager database.

Cisco CallManager informs devices using .cnf format configuration files of their load ID. Devices using .xml format configuration files receive the load ID in the configuration file.

Related Topics

•Understanding the Phone Startup Process, page 2-4

•Resolving Startup Problems, page 6-12

 

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

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Cisco Systems 7912G, 7902G, 7905G manual Contacting Cisco CallManager
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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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