The DSP plays concealment frames to mask frame loss in theĬoncealment Ratio metrics-Show the ratio of concealment frames over total speech frames. Network, Cisco IP Phones use these statistical metrics that are based onĬoncealment events. Measure the voice quality of calls that are sent and received within the Continue pressing the pound key until the Speakerphone and Headset buttons turn green.ĭeletes only the CTL file from the phone.įrom the Admin Settings menu, if required, unlock phone To reboot your phone from the backup, perform the following procedure. Your Cisco IP Phone has a second, backup image that allows you to recover the phone when the default image has been compromised. To restore phone configuration or settings to noncustomized default, press Ok. Perform Custom Reset from Phone Menu Procedure To restore phone configuration or settings to factory default, press Scroll to Admin Settings > Reset Settings, and select All. Select Device administration > Factory reset. Perform Factory Reset from Phone Menu Procedure Hardware Versions Perform Reset All Settings from Phone Menu On earlier hardware versions, the Mute button lights up. If using the power cube, unplug the power cube.You must know if your phone is an original hardware release or if the hardware has been updated and re-released. Use these steps to reset the phone to factory default settings using the phone keypad. Reboot Your Phone from the Backup Imageĭetermine DNS or Connectivity Issues Factory Reset the Phone with the Keypad.
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