Phone does not activate after connecting it the first time.

Unless your System Administrator has already initialized your telephone, you might experience a delay of several minutes before it becomes operational. Upon plug-in, your telephone immediately starts downloading its operational software, its IP Address, and any special features programmed by your System Administrator from the server to which it is connected. Report any delay of more than 10 minutes to your System Administrator.

Phone does not activate after a power interruption.

Allow a few minutes for re-initialization after unplugging, powering down the phone, server problems, or other power interruption causes.

Phone worked earlier but does not currently appear to work.

Contact your System Administrator.

Speaker does not operate.

Ask your System Administrator if your Speaker was disabled.

Phone does not ring.

Use the Up/Down Volume keys to set your ringer volume to a higher level.

From another phone, place a call to your extension to test this suggested solution.

Display shows an error/informational message.

Most messages involve server/phone interaction.

If you are on a call and the display suddenly shows “Discovering...,” the network connection between the telephone and the call server was interrupted, but your call stayed connected. The telephone automatically starts to re-register with the call server, but until re-registration succeeds, you do not have access to switch features and functionality such as Transfer, or to administered Feature buttons.

If you cannot resolve the problem based on the message received, contact your System Administrator for resolution.

Characters do not appear on the Display screen.

See Phone does not activate after connecting it the first time..

Check all lines into the phone to ensure that it is properly connected.

Check the power source to ensure that your telephone is receiving power.

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 might need to be replaced.

If these 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 hear an echo while using a headset, static, sudden silences (gaps in speech), clipped or garbled speech, etc.

Various potential network problems might be causing the problem.

Access the Network Audio Quality screen (described in Viewing the Network Audio Quality in Chapter 6: 4622SW IP Telephone Options) to provide your System Administrator with specific information related to this problem.

Contact your LAN Administrator with as complete a description of the problem as possible.

No dial tone.

Check that both the headset and line cords into the phone are securely connected. Note that there might be a slight operational delay if you unplug and reconnect the phone.

Reset or power cycle the phone with your System Administrator’s assistance. (See the section titled Resetting and Power Cycling the IP Telephone for details.)

Contact your System Administrator if these steps do not produce the desired result.

A feature does not work as indicated in this guide (for example, the Redial button does not operate as described).

Verify the procedure and retry. For certain features, you must activate the headset first or place the phone off-hook.

Contact your System Administrator if this action does not produce the desired result. Your telephone system might have been specially programmed for certain features applicable only to your installation.

All other IP phone problems.

Contact your System Administrator.