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1.2 Making Calls
28 User Manual
1.2.4 When the Dialled Line is Busy or There is No Answer
Reserving a Busy Line (Automatic Callback Busy)
You can set the telephone to receive callback ringing when a dialled line becomes idle.
When you answer the callback, the called party starts ringing automatically.
If you hear a busy tone before dialling, you just seize an outside line upon answering the callback.
Operation after answer is dependent on the type of callback set.
To set
To answer (if set after dialling)
— Reserving a Busy Line (Automatic Callback Busy)
— Setting Callback on an ISDN Line (Completion of Call to Busy Subscriber [CCBS])
— Sending a Call Waiting Tone (Call Waiting)
— Leaving a Message Waiting Indication/Calling Back the Caller Which Left an Indication
(Message Waiting)
— Joining an Existing Call (Executive Busy Override)
— Monitoring Another Extension (Call Monitor)
— To an Extension Refusing the Call (DND Override)
PT/SLT/PS
While hearing a busy tone
Enter 6.
6
On-hook.
C.Tone
Off-hook.
PT/SLT/PS
Talk.
While hearing a callback ringing
R.B.Tone