Remove the rust or wipe away the leakage.
Noise
Check if the circuit is spoilt, change the circuit.
Check if the connector is wet or rusty, change the connector.
Ring once then disconnect when receiving a call. Dialing function is still available
Check if connector is in a moist environment.
Check if too many extensions are used together or the quality of extension is not good enough, change the
bad extension.
LCD become dim
Check if LCD contrast is properly set or if the batteries are weak, adjust LCD contrast, if the LCD is still dim,
replace the batteries.
No ring
Check if the RING tone is in the OFF state, reset it.
Most of the functions failed
Check if the batteries are strong enough, change the batteries.
If batteries are ok, remove the battery, unplug the lines and reinstall after 10 minutes.
Note: Due to continuous product development, all features and specifications are subject to change without
prior notice.
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