Konica Minolta magicolor 1690MF Reference Manual page 289

Item
7-68
PSTN/PBX
Configuring the Machine for Administrator Mode
Description
Select whether the connected telephone
wiring is a public switched telephone net-
work (PSTN) or a private branch
exchange (PBX).
Choices: PSTN, PBX
Default: PSTN
Configuration Menu Equivalent:
UTILITY - ADMIN. MANAGE-
MENT - COMM. SETTING -
PSTN/PBX
When "PBX" is selected, the PBX
number can be set between 0 and
9999.