Casio 4620SW Troubleshooting IP Telephony Applications, Problem/Symptom Suggested Resolution

	Perform the following Test procedure: with the telephone idle (on-hook), press and release the Mute button, then
	press the following numbers on the dialpad: 8 3 7 8 # (which stands for TEST). The display should indicate the
	self-test has started, then report if the test was successful or failed. If nothing appears on the display, and the phone
	is receiving power, your phone may need to be replaced.
	If the above suggested solutions do not resolve the problem, reset or power cycle the phone with your System
	Administrator's assistance.
Audio quality is poor, specifically, you	Various potential network problems may be causing the problem.
hear an echo while using a handset, static,	Access the Network Audio Quality screen to be able to provide your System Administrator with specific
sudden silences (gaps in speech), clipped	information related to this problem.
or garbled speech, etc.	Contact your LAN Administrator with as complete a description of the problem as possible.
No dial tone	Make sure both the handset and line cords into the phone are securely connected. Note that there may be a slight
	operational delay if you unplug and reconnect the phone.
	Reset or power cycle the phone with your System Administrator's assistance.
	Contact your System Administrator if the above steps do not produce the desired result.
Phone does not ring	Set your ringer volume to a higher level using the Up/Down Volume keys.
	From another phone, place a call to your extension to test the above suggested solution.
A feature does not work as indicated in	Verify the procedure and retry. For certain features, you must lift the handset first or place the phone off-hook.
this guide (for example, the Redial button	Contact your System Administrator if the above action does not produce the desired result; your telephone system
doesn't operate as described)	may have been specially programmed for certain features applicable only to your installation.
All other IP Phone problems	Contact your System Administrator.

Troubleshooting IP Telephony Applications

Problem/Symptom	Suggested Resolution
GENERAL:
A feature does not work as indicated in this guide,	Verify the procedure and retry. Check below to troubleshoot the specific application with which you are
or does not work as it had previously worked	working. Ensure that any options have not been changed. Contact your System Administrator if these
	actions do not produce the desired result.
SPEED DIAL APPLICATION:
You cannot dial out using any Speed Dial button	Check that all call appearances (incoming/outgoing lines) are not already in use. If all lines are in use,
	wait until a line is available to make your call.
You cannot add an entry to the Speed Dial list	You have 108 Speed Dial entries, the maximum allowed. You must delete at least one entry before
	adding a new entry.
CALL LOG APPLICATION:
You cannot dial out after selecting a call log entry	Check that all call appearances (incoming/outgoing lines) are not already in use. If all lines are in use,
	wait until a line is available to make your call.
You cannot add an entry to the Speed Dial list	You have 108 Speed Dial entries, the maximum allowed. You must delete at least one entry before
	adding a new entry.
Dialing from this application does not go through	Your administrator must administer settings for the Enhanced Dialing feature beyond the defaults.
The Call Log is empty	Check the Options screen to ensure the Call Log is not Disabled. Many events can clear the Call Log,
	including power failures, restarting the telephone after logging off, etc.
WEB ACCESS APPLICATION:
Pressing the Web softkey does not display a Web	Check with your LAN Administrator to see if the Web server is down, if there are network connectivity
site	problems, or other network problems.
Dialing from this application does not go through	Your administrator must administer settings for the Enhanced Dialing feature beyond the defaults.
You cannot add an entry to the Speed Dial list	You have 108 Speed Dial entries, the maximum allowed. You must delete at least one entry before
	adding a new entry.
OPTIONS:
No Options other than "View IP Settings" display	Your administrator has turned off all user-settable options.
	4620SW IP Telephone End User Guide 20 P a g e