
RST978 INSTALLATION & USER MANUAL
46
Q
The phone will not operate in handheld or in-vehicle mode
A
Check your SIM is inserted correctly in the handset
Check your battery is charged
Refer to your service provider
Q
There a buzzing coming from the in-vehicle unit
A
Check the car radio is switched off whilst on a call
Check there is no external interference from outside the vehicle,
trains, large machinery, other communication equipment
Check the microphone and antenna cabling
Check the DC power input
Q
There is a lot of background noise on the call
A
Check the signal strength and that you have 5 bars to make a quality
call.
Check the location of the microphone, ensure it is not located near an
air vent or too close to an open window
Test on another call
Q
There is extreme echo on the call
A
Check the volume of the terminal is not on the highest setting as this
will create echo, try turning it down a little
Ensure the speaker and microphone are not positioned too close
together
Ensure that the microphone is not facing the speaker
Relocate either or both if necessary
Q
Dropped calls
A
Keep in mind that this is a satellite network and when you are in
motion form time time the satellite signal may become obstructed by
such things as buildings, bridges, tunnels, larger vehicles.
Check the antenna connection
Ensure the antenna cable has not been damaged
Ensure that only approved antenna cable has been used