Connecting to a PBX

A PBX (Private Branch Exchange) is a private telephone system used to route internal calls. If you have to dial a prefix (access) number to get an outside line, then your line is connected to a PBX.

If you are connecting your machine to a PBX, follow the instructions below. These setting changes allow your machine to identify your PBX’s outside line dial prefix digits in the numbers that you program or dial in your machine. After it dials the prefix digits, your machine waits until it sees that the outside line is available before dialing the rest of the number.

Warning: Some PBX installations may require additional adjustments to your machine. If you continue to have difficulty with fax communication after following these steps, contact your dealer.

1Press the SELECT FUNCTION key.

2Press the 9/USER PROG. One-Touch key.

3On the numeric keypad, press 2. The display shows 2:DIAL PARAMETER.

4Press YES until the display shows PBX LINE, [OFF].

5Press NO . The display changes to PBX LINE, [ON].

6Press YES until the display shows DIAL PREFIX, [OFF].

7Press NO . The display changes to DIAL PREFIX, [ ] ENTER 4 DIGITS.

8Using the numeric keypad, enter the number you normally dial from your PBX to obtain an outside line.

9 Press

YES

.

10Press the SELECT FUNCTION key to finish.

Tip: Keep in mind that all of the outside telephone numbers you program into your machine must begin with your PBX’s dial prefix.

Tip: To later turn off the PBX LINE and DIAL PREFIX functions, follow Steps 1-7 above. At Step 8, press the 9/SPACE One-Touch key four times.

30 OKIFAX 4580 User’s Guide

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Oki 4580 manual Connecting to a PBX