Using A Digital Phone Service; Understanding The Control Panel; Using The Control Panel - Lexmark 7550 Series User Manual

3 From the '1 Want To" menu, click Adjust speed dial list and other fax settings.
4 Click the Dialing and Sending tab.
5 From the "Dialing on your phone line" area, select Behind PBX from the Dialing Method drop-down list.
6 Click OK to save the setting.
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."
Understanding the control panel
Using the control panel
The control panel contains:
• Power on/off button
° 60.96 mm (2.4 inch) display capable of showing color graphics
• 24 buttons
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The following diagrams explain the sections of the control panel:
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