Ericsson 250 User Manual
Page 9

OUTGOING CALLS
9
BusinessPhone 250 - Basic Telephone
BusinessPhone 50 - Basic Telephone
AUTOMATIC
CALL-BACK
You call an extension and receive busy tone or get no answer.
Press
Verification tone.
or
Press or replace the handset to finish the
procedure
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.
Lift the handset when you are called back
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).
Press to camp on
Keep the handset 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.
Intrusion
You can intrude on an ongoing call on a busy extension
(if this function is allowed).
Press to intrude
Intrusion tone is heard and a three-party call is established.
When the called extension replaces the handset and you
keep off hook, the called extension will be recalled
automatically.
Note: If you still hear the busy tone, then your extension does not
have the authority to intrude or the desired extension is protected
against intrusion.