I need a phone jack in a workshop to allow my burglar alarm to call out
when required. The building is about 60' from the house and on a
separate electric meter.

Is there a wireless phone jack with this kind of range? Nothing I see
advertised mentions a range, but I get the idea they're very short
range.

The obvious answer is to bury a cable, but there's a patio and other
obstacles that make this very difficult.

thx . . . frank