Yes I too have been with plusnet for four years and have recently renewed a new contract for another 18 months,
I also have unlimited broad band , line rental,with any time phone calls, and also international calls to 20 other countries, which is all I need (as my new charges will be £37.00 per month ,) I had previously only been paying £35.00 per month.
so providing my any time calls don't exceed one hour each time this is part of the package deal. (as you know you can use the phone as many times a day, doing this,.... at no extra charge ,
I also use mobile phones too, but they are on the (Asda pay as you go system) to which the occasional top up is necessary from time to time ,