AASTRA 4187 Plus for BusinessPhone User Guide EN - Manual (Page 20)

Outgoing Calls
BusinessPhone – Dialog 4187 Plus 20
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Lift the handset to call the entry
The number is shown in the display while dialling and during the
call.
Note: When a call list entry of type “incoming” (see
Example 1 above) is called it automatically changes to the
type “outgoing” (see Example 2 above). ®
Press and hold for two seconds to delete the entry
When the erasing procedure is completed
Note: If the Delete button is pressed and hold for eight
seconds the entire list will be deleted. When the erasing
procedure is completed the telephone switches back to the
idle display.