Bang & Olufsen BeoCom 2500 - User Guide - Manual (Page 7)

THE INDICATOR LAMP
The indicator lamp on the front of the telephone flashes when one or more
functions is activated:
• Slow flashes when there are new numbers in the Caller ID list.
• Fast flashes when a parallel telephone is in use.
CALLER ID
TO SEE WHY THE INDICATOR LAMP IS FLASHING
Handset must be on-hook
Press
Clear one, two or
three times
By pressing Clear one or more times
the display will show which of the
functions is activated: Display reading when there are
new numbers in the Caller ID list: