NEC DSX-40 Feature Handbook page 150

Single Line Telephones
Operation
Do one of the following.
1.
a. Call busy extension.
b. Dial the line extension number (e.g., 101) for Direct Line Access.
c. Dial #9 + Line number for Line Dial-up.
d. Dial 9 for Line Group Access.
2. Dial 4 .
3. Join the conversation in progress.
1. Lift the handset and dial *3 .
2. Do one of the following.
a. Dial 0 for Cancel your extension's Call Forwarding.
b. Dial 2 for Call Forwarding Busy/No Answer.
c. Dial 4 for Call Forwarding Immediate.
d. Dial 6 for Call Forwarding No Answer.
Dial destination extension, 0 for your operator, or voice mail master number.
3.
4. Do one of the following.
a. Dial 2 to forward all calls.
b. Dial 8 to forward just outside calls.
5. Hang up.
142 ◆ Features
Barge In
Call Forwarding
DSX Feature Handbook