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5-8 Troubleshooting
Voice Quality Problems (continued)Voice Quality Problems (continued)
Voice Quality Problems (continued)Voice Quality Problems (continued)
Voice Quality Problems (continued)
Symptom
Voice quality for calls is
lower than expected.
Possible Causes
Possible Solutions
You are using different
models of handsets and
the mix is incompatible
with the carrier.
Reinstall the radio module or
carrier away from electrical
equipment and as high as
possible on the wall (but with
radio module antennas 6–12
inches (15.2–30.5 cm) from the
ceiling). See “General Position-
ing Rules” in Chapter 2 for more
information.
There are environmental
limitations.
The handset antenna is
only partially extended.
Fully extend the handset antenna.
See "TransTalk 9000 System" in
Chapter 1.
Handset or radio
module is not
working properly.
Place the handset in Wireless
Test Mode and determine signal
strength and voice quality as
described in Chapter 2. Use the
Close-Up Test described in
"Performance/Range Test in
Wireless Test Mode" in Chapter 3.
Volume is too low at
any setting and there
is noise on the line.
The connection
between the radio
module and the
communications
system switch/control
unit is incorrect.
Check the connection between
the radio module and the commu-
nications system switch/control
unit, as described in Chapter 2.
Telephone line may
be producing noise.
Report line trouble to your local
phone company.
There was a recent
occurrence of
lightning, or a power
failure.
1. Unplug the carrier(s) power
cord(s) from the electrical
outlet.
2. Wait 10 seconds, then repower
the carrier(s) in order, from left
to right.
Your business has two
or more wireless
phones installed and
all handsets seem to
have developed
interference problems
at the same time.