Selecting public switched telephone network (PSTN) or private branch exchange (PABX)

Press the [Menu] key.

Press the [] or [] key to display [Line Settings], and then press the [Yes] key.

Line Settings?       OK=Yes / or 1-2

Press the [] or [] key to display [PSTN/PABX], then press the [Yes] key.

2 PSTN/PABX?         OK=Yes

Press the [] or [] key to select [PSTN] or [PABX], then press the [Yes] key.

If you select [PABX], proceed to Step 5..

*PSTN    PABX         , & Yes

Press the [No] key to switch to the initial screen.

Using the number keys, enter the code for obtaining the outside line. You can enter up to four digits.

Press the [No] key to switch to the initial screen.