Troubleshooting Call Issues - Polycom VVX 1500 User Manual

User Guide for the Polycom VVX 1500 Phone

Troubleshooting Call Issues

Symptom
There is no dial tone.
The phone does not ring.
5 - 4
Problem
Power is not correctly applied to
the phone.
Dial tone is not present on one of
the audio paths.
Ring volume is low.
Outbound or inbound calling is
unsuccessful.
The phone has a Silent ring tone.
Corrective Action
• Check that the display is illuminated.
• Make sure the LAN cable is inserted
properly at the rear of the phone (try
unplugging and re-inserting the
cable).
• If using Power over Ethernet (PoE),
have your system administrator check
that the switch is supplying power to
the phone.
• Switch between Handset, Headset (if
present) or Speakerphone modes to
see if the dial tone is present on other
paths.
• If the dial tone exists on another path,
connect a different handset or
headset to isolate the problem.
While the phone is idle, adjust the ringing
level by pressing
• Place a call to the phone under
investigation. Check that the display
indicates incoming call information.
• Lift the handset. Ensure the dial tone
is present and place a call to another
extension or number. Check that the
display changes in response.
Choose a ring tone other than Silent. See
Updating the Ring Tone on page 2-22.
or .