NEC Univerge SV8100 Features And Specifications Manual page 556

Issue 13.0
To Answer a Door Box call while busy on another call:
Multiline Terminal
If you are busy on a call, the display shows the incoming Door Box call and the large LED flashes.
1. Press Hold to place your active call on hold.
2. When you hear dial tone, dial the door box access code (702 by default) plus the door box number
(1~8) to answer the Door Box call.
To retrieve the original call, hang up with the door box and press Conf .

Single Line Telephone
If you are busy on a call, an off-hook signal is heard indicating the incoming Door Box call.
1. Press the Flash key or hookflash to place your active call on hold.
2. Dial the door box access code (702 by default) plus the door box number (1~8) to answer the Door
Box call.
To retrieve the original call, hang up. The original call rings the single line telephone.

To activate Call Forwarding, Off-Premise for a Door Box:
 This option only works for ISDN PRI or BRI Trunks.
1. At the multiline terminal, press Speaker + dial SC 722.
- OR -
At the multiline terminal only, press the External Forward by Doorphone key (Program 15-07-01 or
SC 751, code 54).
- OR -
At the single line telephone, lift the handset + dial 722.
2. Dial the Door Box number (1~4).
3. Dial the Speed Dialing number where the calls should be forwarded.
4. Press Speaker (or hang up at the single line telephone) to hang up.
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UNIVERGE SV8100
Door Box