Lexmark X5650 Fax Guide - Page 18

Using a digital phone service, If you are using a PBX telephone service - faxing with digital phone line

Page 18 highlights

3 Remove the protective plug from the EXT port of the printer. 4 Connect the other telephone cord to a telephone, and then plug it into the EXT port of the printer. Using a digital phone service The fax modem is an analog device. Certain devices can be connected to the printer so that digital telephone services can be used. • If you are using an ISDN telephone service, connect the printer to an analog telephone port (an Rinterface port) on an ISDN terminal adapter. For more information and to request an R-interface port, contact your ISDN provider. • If you are using DSL, connect to a DSL filter or router that will support analog use. For more information, contact your DSL provider. • If you are using a PBX telephone service, make sure you are connecting to an analog connection on the PBX. If none exists, consider installing an analog telephone line for the fax machine. For more information on faxing when using a PBX telephone service, see the related topic, "Setting up to fax while behind a PBX." Fax Setup 18

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3
Remove the protective plug from the EXT port
of the printer.
4
Connect the other telephone cord to a telephone, and then plug it into the EXT port
of the printer.
Using a digital phone service
The fax modem is an analog device. Certain devices can be connected to the printer so that digital
telephone services can be used.
If you are using an ISDN telephone service, connect the printer to an analog telephone port (an R-
interface port) on an ISDN terminal adapter. For more information and to request an R-interface port,
contact your ISDN provider.
If you are using DSL, connect to a DSL filter or router that will support analog use. For more information,
contact your DSL provider.
If you are using a PBX telephone service, make sure you are connecting to an analog connection on
the PBX. If none exists, consider installing an analog telephone line for the fax machine. For more
information on faxing when using a PBX telephone service, see the related topic, “Setting up to fax
while behind a PBX.”
Fax Setup
18