All manuals and user guides at all-guides.com
PT/SLT/PS
Off-hook.
extension no.
Press red DSS, PDN, or SDN,
or dial extension number.
PT/SLT/PS
extension no.
Off-hook.
Dial extension
number.
(DSS)
OR
(PDN)
OR
B.Tone
(SDN)
OR
Enter 5.
1
DND Tone
Enter 1.
5
Monitoring starts
C.Tone
R.B.Tone
Talk.