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The machine doesn't even have a phone line jack because it has no hardware based fax function whatsoever. You have to use mobile fax feature in HP Smart that uses your smartphone to fax documents from your printer or a 3rd party software fax plugin.
Sorry, there was a problem. Please try again later.Thank you for asking. The Smart Tank does not have a fax modem and does not send or receive faxes using a landline. For send-only capability, you can use the HP Smart App on your phone or PC. If you need a landline-connected fax, please see the OfficeJet Pro and LaserJet Pro models.
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