2.2.4 When the Dialled Line is Busy or There is No Answer
— Reserving a busy line
— Sending a call waiting tone
Reserving a busy line (Automatic Callback Busy)
You can set the telephone to receive call-back ringing when a dialled line becomes idle.
When you answer the call-back ringing:
For an outside call: The line is seized.
For an intercom call: The called extension starts ringing automatically.
PT / SLT
While hearing a busy tone
C.BCK
OR
6
Press "C.BCK" or dial 6.
To answer a call-back ringing and call
PT / SLT
Outside call
Off-hook.
•
If you do not answer after four call-back rings, this feature will be cancelled.
•
If you go off-hook before call-back ringing starts, this feature is cancelled.
•
This feature is not available for an ISDN telephone user.
Operation
C.Tone
On-hook.
phone no.
Enter phone number.
— Leaving a message waiting indication
— Joining an existing call
Intercom call
Off-hook.
2.2 Making Calls
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