Table Of Contents
Troubleshooting the Cisco IP Conference Station 7935
Viewing Network Statistics
Using Ping
Other Troubleshooting
Troubleshooting the Cisco IP Conference Station 7935
The IP Conference Station includes diagnostic capabilities in the LCD interface to help you troubleshoot problems that might occur.
Refer to the appropriate topics in this chapter to troubleshoot the IP Conference Station.
•
Viewing Network Statistics
•Using Ping
•Other Troubleshooting
Viewing Network Statistics
You can view network statistics through the Diagnostics menu.
Note Network statistics are not available on the Web interface.
Follow these steps to view network statistics.
Step 1 Press the Menu button
Step 2 Press the Up or Down scroll button to select Admin Setup.
Step 3 Press the Select button.
Step 4 Enter the administrator password (the default administrator password is **#) and then press the Enter softkey.
Step 5 Press the Up or Down scroll button to select Diagnostics, and then press the Select button.
Step 6 Select Network Statistics and press the Select button.
The following statistical information appears.
•Network stats (for example, Auto-FDX-100Mbps or 10Mbps-HDX)
•Rcv: count of frames received
•Xmt: frames transmitted
•REr: frames received in error
•BCast: broadcast frames
Use the Clear softkey to clear the current counts and start all counts at zero for the current session.
Step 7 Press the Menu button to go back to the Diagnostics menu, or press the Exit button to return to the resting display.
Using Ping
You use Ping to test network connectivity to another device. Ping is available through the Diagnostics menu.
Follow these steps to use Ping.
Step 1 Press the Menu button
Step 2 Press the Up or Down scroll button to select Admin Setup.
Step 3 Press the Select button.
Step 4 Enter the administrator password (the default administrator password is **#) and then press the Enter softkey.
Step 5 Press the Up or Down scroll button to select Diagnostics, and then press the Select button.
Step 6 Select Ping and press the Select button.
Step 7 Use the dialing pad to enter the IP address of the device you want to ping.
Press the . softkey to enter periods (.) and press the < softkey to correct mistakes.
Step 8 Press the Execute softkey.
A reply message similar to the following should display:
Step 9 Press the Menu button to go back to the Diagnostics menu, or press the Exit button to return to the resting display.
Other Troubleshooting
The following table provides some information for troubleshooting possible problems with the IP Conference Station.
Problem Description
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Resolution
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LCD screen message display
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If the message "Obtaining IP Address" is persistent in the LCD screen display, check the DHCP server and check the network connections.
If the message "Cannot contact TFTP Server" is persistent in the LCD screen display, check to make sure that the TFTP Server is up and running.
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Poor voice quality when calling digital cell phones using the G.729 codec
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In Cisco CallManager, you can configure the network to use the G.729 codec (G.711 is the default). When the G.729 codec is used, calls between the IP Conference Station and a digital cellular phone will have poor voice quality. Use the G.729 codec only when necessary.
For more information, refer to the Cisco CallManager application online help.
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No dial tone
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Check that all connections are secure and in place.
Make sure all connections are correct.
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IP Conference Station does not ring
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Check that the ringer setting is not "Ringer Off."
Check the volume level.
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IP Conference Station resetting
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•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.
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No LCD screen display
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Check to make sure that the IP Conference Station has power.
Make sure that the power supply unit is plugged in.
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LCD screen display issues
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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.
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DTMF delay
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When you are on a call that requires keypad input, if you press the keys too quickly, some of them might not be recognized.
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