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User Guide for the SoundPoint IP 650 Desktop Phone
6 - 4
Audio
Calling
Symptom Problem Corrective Action
There is no audio on the
headset.
The connections are not correct. Do one of the following:
• Ensure the headset is plugged into the
jack marked Headset at the rear of the
phone.
• Ensure the headset amplifier (if
present) is turned on and/or the
volume is correctly adjusted. If the
amplifier uses batteries, check that
they are fully charged.
You are using a headset and the
people you call hear echo.
There may be an issue with the
echo cancellation feature of your
headset.
Do the following:
• Press the Menu key, then select
Settings > Basic > Preferences >
Headset > Echo Cancellation.
Using the arrow keys, select Enabled,
and then press the Select soft key.
• Contact your system administrator.
Symptom Problem Corrective Action
There is no dial tone. Power is not correctly applied to
the SoundPoint IP 650 phone.
Do one of the following:
• Check that the screen is illuminated.
• Make sure the LAN cable is inserted
properly at the back of the phone (try
unplugging and re-inserting the
cable).
• If using in-line powering, have your
system administrator check that the
switch is supplying power to the
phone.
Dial tone is not present on one of
the audio modes.
Do one of the following:
• Switch between Handset, Headset (if
present) or Hands-Free
Speakerphone to see if the dial tone is
present for one of audio modes.
• If the dial tone exists on another audio
mode, connect a different handset or
headset to isolate the problem.
The phone is not registered. Contact your system administrator.