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Cisco 8832 Maintenance Manual
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Cisco 8832 Maintenance Manual

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Maintenance
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Basic Reset
Performing a basic reset of a Cisco IP Phone provides a way to recover when the phone experiences an error.
The reset provides a way to reset or restore various configuration and security settings.
Note
When you set up emergency calls, the phone requests an updated location whenever a person performs a
phone restart.
The following table describes the ways to perform a basic reset. You can reset a phone with any of these
operations after the phone has started up. Choose the operation that is applicable for your situation.
Table 1: Basic Reset Methods
Operation
Restart phone
Reset settings
Basic Reset, on page 1
Voice Quality Monitoring, on page 4
Voice Quality Reporting, on page 5
Cisco IP Phone Cleaning, on page 7
View Phone Information, on page 7
Reboot Reasons, on page 7
Action
Explanation
Resets any user and network setup
changes that you have made, to the
previously saved settings that the
phone has not written to its flash
memory. The phone then restarts.
Restores the phone configuration
or settings to factory default.
Maintenance
1

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Summary of Contents for Cisco 8832

  • Page 1 Reboot Reasons, on page 7 Basic Reset Performing a basic reset of a Cisco IP Phone provides a way to recover when the phone experiences an error. The reset provides a way to reset or restore various configuration and security settings.

  • Page 2: Perform A Factory Reset With The Phone Keypad

    Maintenance Perform a Factory Reset with the Phone Keypad Note When an administrator has set up emergency calls, the phone requests an updated location whenever the administrator does the following actions: • Registers the phone with the call server. • Restarts the phone (phone is registered). •...

  • Page 3: Factory Reset The Phone From Phone Web Page

    Maintenance Factory Reset the Phone from Phone Web Page Step 3 To restore phone configuration or settings to factory default, press OK. Factory Reset the Phone from Phone Web Page You can restore your phone to its original manufacturer settings from the phone web page. After you reset the phone, you can reconfigure it.

  • Page 4: Voice Quality Monitoring

    IP>/admin/ping?192.168.1.1 Voice Quality Monitoring To measure the voice quality of calls that are sent and received within the network, Cisco 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.

  • Page 5: Voice Quality Reporting

    Protocol (SIP) event package. Voice call quality information derived from RTP and call information from SIP is conveyed from a User Agent (UA) in a session (reporter) to a third party (collector). The Cisco IP phone uses User Datagram Protocol (UDP) to send a SIP PUBLISH message to a collector server.

  • Page 6: Mean Opinion Scores And Codecs

    Maintenance Mean Opinion Scores and Codecs Mean Opinion Scores and Codecs The voice quality metrics use Mean Opinion Score (MOS) to rate the quality. A MOS rating of 1 is the lowest quality; a MOS rating of 5 is the highest quality. The following table gives a description of some of the codecs and MOS scores.

  • Page 7: Cisco Ip Phone Cleaning

    Cisco IP Phone Cleaning To clean your Cisco IP Phone, use only a dry soft cloth to gently wipe the phone and the phone screen. Do not apply liquids or powders directly to the phone. As with all non-weatherproof electronics, liquids and powders can damage the components and cause failures.

  • Page 8: Reboot History On The Phone Web User Interface

    The reboot history displays in reverse chronological order; the reason for the most recent reboot displays in Reboot Reason 1. Reboot History on the Cisco IP Phone Screen Reboot History is located under Apps > Admin Settings > Status menu. In the Reboot History window, the reboot entries displays in reverse chronological order, similar to the sequence that displays on the phone web user interface.

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