I have 2 phones,Alltel with the circle of friends,for business,you can put me on hold all day,doesnt effect my anytime mins.Also have Sprint,most my friends are on Sprint,and I use for text messages from fed ex,as i have 800 free text messages.between both phones,I spend 150 bucks a month,and usally use about 6000 total mins.there are occasions where 1 phone gets better coverage than the other,so helps I never miss a call.Both phones are blue tooth capable,and the Parrot head set works on both.