3.4.4 Making call to outside line
Step 1
Press the select key on the Handset and select F1. The Handset starts to
establish RF connection with the Base Station. LCD is not changed.
Step 2
When RF connection is established, the Handset goes to Talk Mode and Talk icon
is turned on and current volume is shown on the LCD. And F1 LED is turned on.
<Notes>
1) When the outside line is not connected with PBX, Handset shows message "HANG
UP" and emits busy tone.
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