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Operation
Turn on the unit by moving the Power Switch to the “On” position.
When the unit is first switched on, the C3 unit searches for a
network before calls can be made.
Signal Strength
Indicators
In Use Indicator
Network
Indicator
Powe
r
Indicato
r
When the unit is turned on, the Power Indicator will illuminate and
the Network Indicator will flash quickly while the C3 searches for a
network. When a network is found, the Network Indicator will flash
slowly and the Signal Strength Indicators will illuminate based on
the GSM signal strength.
If the SIM card is not installed or the SIM card can’t be used, the
Signal Strength Indicators and Network Indicator will flash quickly. If
a connected phone is taken off-hook, a busy signal will be heard.
Note: If the SIM care is not installed or can’t be used, turn the
Power Switch to “Off” so that the landline can be used as normal.
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