Operating Manual

To set (for both extension and CO line)
PT/SLT/PS
While hearing a busy tone
Enter 6.
6
On-hook.
C.Tone
To answer the callback ringing from an idle extension
Off-hook.
PT/SLT/PS
Talk.
While hearing a callback ringing
R.B.Tone
To answer the callback ringing from an idle CO line
Off-hook.
PT/SLT/PS
Talk.
Dial outside
phone number.
outside
phone no.
While hearing a callback ringing
• If you do not answer the callback ringing within 10 seconds, this feature will be canceled.
Automatic Callback Busy Cancel
Off-hook.
PT/SLT/PS
On-hook.
4 6
Enter 46.
C.Tone
Document Version 2013-05 Operating Manual 33
1.3.4 Automatic Callback Busy (Camp-on)