Cisco 7935 Administration Guide - Page 88

Problem Description, Resolution, The IP Conference Station resets when

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Other Troubleshooting Problem Description IP Conference Station does not ring IP Conference Station resetting No LCD screen display LCD screen display issues DTMF delay Chapter 4 Troubleshooting the Cisco IP Conference Station 7935 Resolution Check that the ringer setting is not "Ringer Off." Check the volume level. • The IP Conference Station resets when it loses contact with the Cisco CallManager software. The following status message appears in the LCD screen if the IP Conference Station loses contact with the Cisco CallManager software: Registering • The IP Conference Station resets when it loses contact with the network. The following status message appears in the LCD screen if the IP Conference Station loses contact with the network Configuring IP These lost connections can be due to any network connectivity disruption, including cable breaks, switch outages, and switch reboots. Check to make sure that the IP Conference Station has power. Make sure that the power supply unit is plugged in. You might see beat frequencies (scan lines) in the LCD screen if you are using certain types of older fluorescent lights in your building. Moving the IP Conference Station away from the lights, or replacing the lights, should resolve the problem. When you are on a call that requires keypad input, if you press the keys too quickly, some of them might not be recognized. Cisco IP Conference Station 7935 Administration Guide 4-4 78-12727-03

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Chapter 4
Troubleshooting the Cisco IP Conference Station 7935
Other Troubleshooting
4-4
Cisco IP Conference Station 7935 Administration Guide
78-12727-03
IP Conference Station does not ring
Check that the ringer setting is not “Ringer Off.”
Check the volume level.
IP Conference Station resetting
•
The IP Conference Station resets when it
loses contact with the Cisco CallManager
software.
The following status message appears in the
LCD screen if the IP Conference Station loses
contact with the Cisco CallManager software:
Registering
•
The IP Conference Station resets when it
loses contact with the network.
The following status message appears in the
LCD screen if the IP Conference Station loses
contact with the network
Configuring IP
These lost connections can be due to any
network connectivity disruption, including
cable breaks, switch outages, and switch
reboots.
No LCD screen display
Check to make sure that the
IP Conference Station has power.
Make sure that the power supply unit is plugged
in.
LCD screen display issues
You might see beat frequencies (scan lines) in the
LCD screen if you are using certain types of older
fluorescent lights in your building. Moving the
IP Conference Station away from the lights, or
replacing the lights, should resolve the problem.
DTMF delay
When you are on a call that requires keypad input,
if you press the keys too quickly, some of them
might not be recognized.
Problem Description
Resolution