If you want to arrange a phone call or an in-person meeting, I prefer that you email me first.
I do not provide my phone number or mailing address online. You could probably find both with a bit of effort. Unfortunately, being a homeowner my physical address is a matter of public record.
Nevertheless, if I get an unsolicited text or call from a number I don't recognize, I block it. Likewise, if somebody shows up at my house uninvited, and they're not in clear need or in possession of a judicial warrant, they will get scant welcome from me.