Troubleshooting and Maintenance

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This chapter provides information that can assist you in troubleshooting problems with your

Cisco Unified IP Phone or in your IP telephony network.

For additional troubleshooting information, refer to the Using the 79xx Status Information For Troubleshooting tech note. This document is available to registered Cisco.com users at this URL:

http://www.cisco.com/warp/customer/788/AVVID/telecaster_trouble.html

If you need additional troubleshooting assistance, you can contact the Cisco TAC. The phone generates detailed logs that can assist the Cisco TAC with troubleshooting and resolving problems.

This chapter includes these topics:

•Resolving Startup Problems, page 8-1

•Cisco Unified IP Phone Resets Unexpectedly, page 8-6

•Troubleshooting Cisco Unified IP Phone Security, page 8-9

•General Troubleshooting Tips, page 8-10

•General Troubleshooting Tips for the Cisco Unified IP Phone Expansion Module 7914, page 8-12

•Resetting or Restoring the Cisco Unified IP Phone, page 8-13

•Using the Quality Report Tool, page 8-15

•Monitoring the Voice Quality of Calls, page 8-15

•Where to Go for More Troubleshooting Information, page 8-17

•Cleaning the Cisco Unified IP Phone, page 8-17

Resolving Startup Problems

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

Cisco Unified Communications Manager, 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, see the following sections for troubleshooting information:

•Symptom: The Cisco Unified IP Phone Does Not Go Through its Normal Startup Process, page 8-2

•Symptom: The Cisco Unified IP Phone Does Not Register with Cisco Unified Communications Manager, page 8-2

•Symptom: Cisco Unified IP Phone Unable to Obtain IP Address, page 8-6

Cisco Unified IP Phone 7960G/7940G Administration Guide for Cisco Unified Communications Manager 7.0 (SCCP)

	OL-15498-01	8-1

7960G, 7940G specifications

Cisco Systems has long been a leader in creating innovative networking and communication solutions. Among their range of Voice over IP (VoIP) phones, the Cisco 7960G and 7940G stand out as robust, versatile devices that cater to the needs of modern businesses. Released in the early 2000s, these models respectively combine functionality, ease of use, and key features tailored for effective communication.

The Cisco 7960G is a high-end model designed for users who demand advanced features and functionalities. It comes with a large backlit LCD display that not only enhances visibility but also provides easy navigation through various options. The phone supports up to six lines, allowing users to manage multiple calls effortlessly. Its user-friendly interface includes programmable feature buttons and a 10/100 Ethernet switch, enabling seamless integration into existing networks.

On the other hand, the Cisco 7940G is a more basic model designed for users who require essential features for their business communications. It includes a monochrome LCD screen and supports a maximum of two lines. Despite its simplicity, the 7940G is equipped with several key features such as integrated speakerphone and mute options, making it ideal for day-to-day communication needs. Both models support Power over Ethernet (PoE), eliminating the need for separate power adapters and ensuring a cleaner, more organized workspace.

In terms of technologies, both the 7960G and 7940G leverage the Session Initiation Protocol (SIP) for signaling and media exchange. They also support secure communication through protocols like Secure Real-time Transport Protocol (SRTP) and Transport Layer Security (TLS). This ensures that businesses can engage in confidential conversations without the risk of interception.

The characteristics that make these models appealing include durability, ease of configuration, and reliability. Organizations can benefit from Cisco’s reliable support and regular updates, ensuring that their communication infrastructure remains robust and secure. With features designed for scalability, both phones can easily integrate into larger systems while maintaining high call quality.

In summary, Cisco’s 7960G and 7940G VoIP phones are exemplary devices that cater to a variety of business communication scenarios. With their blend of functionality, support for essential technologies, and reliable performance, they continue to serve organizations effectively in an increasingly interconnected world. Whether used in a bustling office or as part of a dynamic telecommunications strategy, these models offer excellent value and performance.

Cisco Systems 7940G, 7960G manual Troubleshooting and Maintenance, Resolving Startup Problems

Models: 7960G 7940G

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