Fujitsu SRS-12I Administrator's Manual page 36

Feature Activator and Button Placement
Subscribed Feature
3 way conference
Drop
Transfer
Message Waiting
Call Exclusion
Privacy (Bridged Call
Exclusion)
Call Forwarding
Variable
FA: Feature Activator
FI: Feature Indicator
Assigned FA SRS-12i
Assigned FI
FA 18
FA 60
FA 19
FA 62
FA 20
FA 61
FA 63 MSG LED
FA 59
FA 58
FA 57
SRS-24i
Assigned FI
18 18
18 18
19 19
19 19
20 20
20 20
MSG LED
4 15
5 16
6 17
3-17
3