Avaya 4075 - Manual (Page 220)

Accessing additional features using FFC or SPRE codes
220
To access additional features using FFC or SPRE codes:
Use the following table to record FFC or SPRE codes for features
available on your system, based on the information provided by your
system administrator.
1. Use the Dialpad to enter the FFC or SPRE code
while the handset is idle.
2. Press the Call key.
Attention: Contact your system administrator for the specific FFC and
SPRE code numbers.
Table 16: FFCs and SPRE codes
FFC or SPRE code Feature
Call Forward— to activate
Call Forward— to deactivate