Panasonic KX-TGA573 Operating Instructions Manual page 21

Problem
I pressed {Call button}
but the cordless camera
does not page the
handsets.
The handset speaker
and/or the cordless
camera emit a howling
noise while monitoring.
When using the handset
speakerphone to have an
intercom call with the
cordless camera, sound
cuts in and out and you
have difficulty hearing the
other party.
For assistance, please visit http://www.panasonic.com/phonehelp
Cause & solution
L While the image of the cordless camera is being
monitored by a handset, {Call button} will not have
response.
L Move the handset away from the cordless camera.
L Lower the speaker volume by pushing {V}.
Useful Information
21