A:AnswerYou don't have to do the automatic ink shipping service. During setup there is an option to not do it. It's not obvious so read all of your options when you get to the screen. On mine it was the second from the bottom though I can't recall the exact wording. If you already signed up for the automatic shipping I'm sure there is somewhere in the settings to cancel.
A:AnswerThis printer does not have fax, so a landline will be useless. If you wish to print from a phone, you can use any smartphone, whether iPhone or Android.
A:AnswerNo, you can use this printer via WiFi for any computer on the same WiFi. You have to install the HP software on any computer that uses the printer.