HP LaserJet Pro 400 color MFP M475 - PBX

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The product is an analog device that is not compatible in all digital phone environments. Digital-to-
analog filters or converters may be needed for faxing functionality. If faxing issues occur in a PBX
environment, it might be necessary to contact the PBX provider for assistance. HP does not
guarantee that the product will be compatible with digital environments or digital-to-analog converters.

Contact the PBX provider for more information and for assistance.