Work for it. Ask him what extra chores you can do to earn it. Its not the easy way to do it. But, if you really want it, its worth working for.
what influences people to purchase a cellphone
just by proving that you need it
Talk to your dad and tell him you want one and tell him your reasons.
Get an iTouch, or convince your parents to let you have a phone.
Depends on your your dad's mood probably
convince herif it doesn't work convince your dad
answer try and force him or convince him
get a job and but with your own money
Prove that you are responsible, and can take care of it.
Anal.
Tell him that you will take care of it and viola!
be nice to them and persuade them, ask them.