NEC Univerge SV8100 Features And Specifications Manual page 261

UNIVERGE SV8100
Program
Program Name
Number
15-07-01 Programmable Function Keys
20-01-07 System Options – Callback Ring
Duration Time
20-01-09 System Options – Callback/
Trunk Queuing Cancel Time
Operation
To place a Callback:
1. Call unavailable (busy or unanswered) extension.
2. Dial or press the Callback key (Program 15-07 or SC 751: 35).
#
3. Hang up.
4. Lift the handset when busy extension calls you back.
 If the unavailable extension was unanswered (not busy), the Callback goes through after your co-worker uses
their telephone for the first time.

If you have Callback Automatic Answer, you automatically place a call to the formerly busy extension when you
lift the handset. If you do not have Callback Automatic Answer, you must press the ringing line appearance to
place the call.
To cancel a Callback:
1. At the multiline terminal, press Speaker and Dial 770.
- OR -
At the multiline terminal, press Camp-On key (Program 15-07 or SC 751: 35).
- OR -
At the single line telephone, lift the handset and dial 770.
Callback
Description/Comments
Assign functions to multiline
terminal line keys.
Set the time of the Callback ring.
The system cancels Callback and
Trunk Queuing requests after this
time.
Assigned Data
1
Line Key 1~48
0~99 (Normal Function
Code 751 by default)

 
00 ~ 99
(Appearance Function
Code) (Service Code
752 by default)
0~64800 (seconds)
(default = 15 seconds)
0~64800 (seconds)
(default = 64800
seconds)
Issue 12.0
Level
2 3
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