What is the function of the LED display?

Left LED: display registration and operation function

In operation

Light off power supply off
Constantly on normal link to base station
Flashing no link to base station
Not yet registrated

Flashing twice per second ready for automatic registration
Light off automatic registration unsuccessful after 5 mins

Right LED: displays the handset traffic via the repeater

In operation

Light off no traffic
Flashing once every 3 seconds one handset linked via repeater
Flashing twice every 3 seconds two handset linked via repeater
Constantly on base station not prepared for operation with a repeater (does not apply to base stations where Repeater Mode can be switched off and on)