Samsung DS-5012L - Manual (Page 74)

Making Calls DS/ITP-5012L Phone User Guide
61
2.
When you hear confirmation tone, replace
the handset.
The screen will display a callback
message.
Q
Answering a Callback
When the station on which you set a callback becomes free, your phone
will ring.
1.
Lift the handset.
You will hear ringing at the free station.
2.
Begin speaking when the other party
answers.
the reserved extension number