Panasonic KX-TDA15 User Manual page 45

Monitoring Another Extension (Call Monitor)
The preprogrammed extension can monitor another extension.
To monitor
PT/SLT/PS
Off-hook. Press red DSS or dial
extension number.
To an Extension Refusing the Call (DND Override)
The preprogrammed extension can call someone who has set the DND feature.
PT/SLT/PS
Off-hook.
(DSS)
OR
B.Tone
extension no.
extension no.
DND Tone
Dial extension
number.
1.2.4 When the Dialled Line is Busy or There is No Answer
5
C.Tone
Enter 5.
1
R.B.Tone
Enter 1.
Monitoring starts
Talk.
User Manual 45