Ericsson 4187 Plus - Manual (Page 25)

25 Dialog 4187 Plus
Outgoing Calls
Cancel any single Callback u
Lift the handset. #37* z
Dial and enter the extension number.
Note: To cancel a single Callback on a specific external line,
dial the digit or digits to get a line instead of the extension
number. # d
Press and replace the handset.
Cancel all Callbacks u
Lift the handset. #37#
Dial.
d
Replace the handset.
Activate Call Waiting
If you urgently wish to contact a busy extension or external line, you
can notify the extension by a call waiting signal. 5
Press.
Note: France and Finland, press
6
; Sweden, press
4
Keep the handset off hook. When the called extension or the
external line becomes free, it will be called automatically.
Notes:
The Call Waiting feature might be blocked for use on your
extension (preprogrammed by your system administrator).
If Call Waiting is not allowed you will continue to receive a
busy tone.