Answers: 1. You’re required to pay the plan for 24 months the required amount stated in your contract. As per the sim, it’s expected you use the network sim since you’re paying for the plan anyway. If you wished to change networks within the contract period, you may do so but you would still pay the remaining balance of your contract plus termination fee for early termination if you did that, then you may have your line unlocked so you can use another network’s sim. 2. After two years (if that’s the contract period), the unit is already yours. The cash-out payment for first-time postpaid plans are usually paid upfront once. If you’re renewing your contract, usually it’s amortized monthly until the end of your new contract, 3. Yes, you can keep the phone because it’s already yours. After your contract is over, you have the ability to be on the line-only plan (keeping the same device), downgrade your plan to a more affordable rate, or have a new device with a new contract.