If you think that you need a cell or smart phone to do business THINK AGAIN!
Yes as an experiment I took myself off the smartphone from StraightTalk and what a BLESSING it has been to NOT hear that thing going off!
I have also INCREASED my business without using it! I sent email to all my clients that during this experiment they would have to EMAIL me and all agreed to do it. Actually I have found that because they are SO overwhelmed with phone calls that I get QUICKER responses by email! So email is NOT dead for business!
DO this yourself and see what happens!