Fujitsu F9600 User Manual page 51

NOTES
1. Registration and cancellation of Call Forward - No Answer apply
to your extension's prime line even if these features are
registered or canceled by another line on your telephone.
2. Twelve seconds (3 to 4 rings) is the standard ringing time before
the call automatically forwards.
3. If a user receives a call waiting tone while on a call and the call
waiting is not answered, the waiting call will forward to the Call
Forward - No Answer destination.
Call Forward - No Answer (Cont'd)
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