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Verify that the telephone service supports analog fax.
If using ISDN or digital PBX, contact your service provider for information about configuring to an
analog fax line.
If using a VoIP service, change the
control panel. Ask if your service provider supports fax and for the recommended fax modem
speed. Some companies might require an adapter.
If using a DSL service, ensure that a filter is included on the phone line connection to the product.
Contact the DSL service provider or purchase a DSL filter if you do not have one. If a DSL filter is
installed, try another since these filters can be defective.
If the error persists, find more detailed problem-solving solutions in the sections that follow this one.
Solve fax problems 101