Panasonic DBS-2.3-400 Programming Manual page 274

Chapter 2. Trunk Programming (FF2)
Related Programming
Digital Pad Settings: FF1 8# 4# 3# (1-12)# (1-12)# (0-30)#
Station Port Class: FF3 (ExtPort)# 37# (1-2 or 7-8)#
Notes
Extension Circuit Types. Circuit types can also be assigned to extension
ports. See the Station Port Class address for more information.
Page 2-26 DBS Manual - Revised April 2000
Section 400-Programming
DBS-2.3/9.2-400