Plantronics CT14 User Manual page 31

When you have this problem
The MESSAGE WAITING
indicator flashes, but there are
no new messages.
The outside caller's audio
is weak.
There is noise or static on
the line.
Try this
Reset the MESSAGE WAITING Indicator.
(See page 25)
If the caller's voice sounds weak or soft,
the signal might be blocked by large metal
objects or walls; you might also be too far
from the base, or the dial pad's battery may
be weak.
• Try adjusting the volume of the headset (see
page 8) or the audio tone (see page 15).
• Try moving around while you're on a call
or moving closer to the base to see if the
sound gets louder.
• Make sure the dial pad's battery is fully
charged.
• Check nearby for one of the common
interference sources.
• If the base is in close proximity of
microwaves, ovens, TVs, or any electrical
appliances, try moving it away from those
devices.
• Try moving the dial pad away from a
suspected source, or try moving the
suspected source so it's not between the
dial pad and the base.
If you have DSL on the same phone line,
be sure that you are using a DSL filter
between the base and the telephone jack.
You may obtain a DSL filter from your DSL
service provider.
Troubleshooting
27