Cisco 7970G Administration Guide - Page 256
Using the Quality Report Tool, Monitoring the Voice Quality of Calls
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Using the Quality Report Tool Chapter 9 Troubleshooting and Maintenance After you press these keys, the line buttons on the phone flash orange and then green, and the phone goes through the factory reset process. This process can take several minutes. Do not power down the phone until it completes the factory reset process, and the main screen displays. Using the Quality Report Tool The Quality Report Tool (QRT) is a voice quality and general problem-reporting tool for the Cisco Unified IP Phone. The QRT feature is installed as part of the Cisco Unified Communications Manager installation. You can configure users' Cisco Unified IP Phones with QRT. When you do so, users can report problems with phone calls by pressing the QRT softkey. This softkey is available only when the Cisco Unified IP Phone is in the Connected, Connected Conference, Connected Transfer, and/or OnHook states. When a user presses the QRT softkey, a list of problem categories appears. The user selects the appropriate problem category, and this feedback is logged in an XML file. Actual information logged depends on the user selection and whether the destination device is a Cisco Unified IP Phone. For more information about using QRT, refer to Cisco Unified Communications Manager Features and Services Guide. Monitoring the Voice Quality of Calls To measure the voice quality of calls that are sent and received within the network, Cisco Unified IP Phones use these statistical metrics that are based on concealment events. The DSP plays concealment frames to mask frame loss in the voice packet stream. • Concealment Ratio metrics-Show the ratio of concealment frames over total speech frames. An interval conceal ratio is calculated every 3 seconds. 9-22 Cisco Unified IP Phone 7970G/7971G-GE Administration Guide for Cisco Unified Communications Manager 6.1 OL-14626-01