User guide

27BusinessPhone – Cordless phone DT292
Outgoing Calls
Automatic Call-back
You call an extension and receive busy tone or get no answer.
This can also be used if no external line is free:
5 Press
Verification tone.
Note: The number for automatic callback may differ from
country to country, see table “Alternative programming for
Automatic Callback, Camp-on, Intrusion” on page 84.
 Press
You are called back if the extension finishes the ongoing call or the
next time the extension finishes a new call. You have to answer
within eight seconds otherwise the Call-back service is cancelled.
Busy extension
You call an extension and receive busy tone.
Camp-on
You can notify a busy extension of your call by a muted ringing call
(if this function is allowed).
4 Press to camp-on
Stay off hook. When the called extension replaces the handset it
will be called automatically.
Note: If you receive the busy tone again, the desired
extension does not allow Camp-on.
The number for Camp-on may differ from country to
country, see table “Alternative programming for Automatic
Callback, Camp-on, Intrusion” on page 84.