PT/SLT/PS
(DSS)
Off-hook.
Press red DSS, PDN, or SDN, or dial extension number.
PT/SLT/PS
Off-hook.
Dial extension
number.
A busy tone is heard and the caller
information of the call to another
extension is displayed.
OR
(PDN)
OR
B. Tone
(SDN)
OR
extension no.
extension no.
DND Tone
5
C.Tone
Enter 5.
1
R.B.Tone
Enter 1.
Monitoring starts
Talk.