Geemarc Jupiter 4 - Manuel (Page 22)

CALLER ID SYSTEM OPERATION
4 - CALL BACK THE INCOMING NUMBER
The unit can store up to 99 incoming numbers.
- Lift the handset or press button to listen for a dial tone.
- Select the caller that you want to call back by pressing or button.
- Press OK button to automatically dial the phone number shown on the
LCD panel.
Or
With the handset on-hook, use or button to select the number you
want to call back, then pick up the handset or press button, the
phone number will be dialed out automatically.
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