Before Calling for Service
After installation, programming, and performance
checkout, your cellular telephone is ready for
operation. If you experience operating difficulties,
check the following before making a call for service:
Have you read your User Manual?
Everything you need to know to operate your cellular
telephone is in your User Manual. Take the time to
read it and become familiar with all the features of
your telephone before calling for service. Note that not
all of the features discussed below are included in all
telephone models.
If your telephone is equipped with digital hands-free
(with an external microphone), do you hear excessive
feedback noise during a hands-free call?
Because of audio variations in the cellular system,
excessive feedback noise or howling may sometimes
be heard when a full duplex (if your telephone is so
equipped) hands-free call is placed or received. If this
occurs, decrease the speaker volume using the
volume control on the handset. Also, verify that the
microphone was not installed in an area of the vehicle
that is subject to high background noise (above 85 dB
SPL). More information about hands-free operation
can be found in your User Manual.
Installation Manual
42
Summary of Contents for T5ZX1
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