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

Debugging

To collect debugging information in a log file, perform the following steps. For information about editing the Cisco IP Phone profile, see Chapter 6, “Configuring the Cisco IP Phone Models 7905G and 7912G Using a TFTP Server.”

Step 1 Add the following line to the Cisco IP Phone profile:

Nprintf:IPaddress.listen_port

where:

IPaddress is the IP address of the server to which information will be sent.

listen_port is the port to which information is sent on the server specified.

For example, if you want to send information to port 9001 on a server with an IP address of 192.168.2.170, set the Nprintf parameter to 192.168.2.170.9001.

Note If you set this parameter to 0 or to 0.0.0.0.0, no information will be sent from the phone.

Step 2 On the server that will receive information, open a command window and type the following command:

prserv [listen_port]

where listen_port is the same port that you specified with the Nprintf parameter.

If you do not specify a port, 9001 is used by default.

While prserv is running, information from the Cisco IP Phone is sent to a file named listen_port.log, where listen_port is the port you specified with the Nprintf parameter and the prserv command. This file is stored on the server you specified with the Nprintf parameter in the folder from which you ran the prserv command. If the file exists, new information is appended to it.

You can open a listen_port.log file using a text editor.

Step 3 To exit prserv.exe and stop collecting information, press Ctrl-Cin the command window.

 

Cisco IP Phone Models 7905G and 7912G Administrator Guide (SIP)

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Cisco Systems 7905G, 7912G manual Debugging

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.