Lexmark 5300 Series Setting up to fax while behind a PBX

2Connect one telephone cord to the LINE port of the printer, and then plug it into an active telephone wall jack.
3Remove the protective plug from the EXT port of the printer.
4Connect the other telephone cord to a telephone, and then plug it into the EXT port of the printer.
Setting up to fax while behind a PBX
If the printer is being used in a business or office, it may be connected to a Private Branch Exchange (PBX) telephone
system. Ordinarily, when dialing a fax number, the printer waits to recognize the dial tone and then dials the fax
number. However, this method of dialing may not work if the PBX telephone system uses a dial tone that is not
recognizable to most fax machines. The “Dialing while behind a PBX” feature enables the printer to dial the fax number
without waiting to recognize the dial tone.
1From the desktop, double-click the Productivity Studio icon.
2From the Settings area of the Welcome Screen, click Fax History and Settings.
Setting up the printer
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