Recall; Call Duration Indicator On The Display; Locating A Misplaced Handset (Paging) - Denver DDP-300 User Manual

4.10 Recall

You can press key to toggle between 2 external call, if you subscribe to
call waiting service.

4.11 Call Duration Indicator on the Display

As soon as you press the Line key the call duration appears on the display
(minutes-seconds). E.g. " 01-20 " for 1 minute and 20 seconds. The call duration
remains visible on the display for 5 seconds after each call.

4.12 Locating a misplaced handset (paging)

If you cannot find the handset, briefly press the Paging key on the base unit.
All handsets subscribed with the base unit will sound a signal so you can locate
them is placed handset. To stop the signal, briefly press the Line key on the
handset.
9 Model:DDP-300