I’ve always been a postpaid subscriber, which means my phone is locked to the network which I am subscribed with. However, it is kind of hard because I can’t use the same phone for a different network. Which means I have to buy a different phone to be able to use a different network. But knowing it’s advantage, I did bought an unlocked phone for personal and business use. So me and anyone in my employee can use it for emergency purpose, like say for example inserting a different network of SIM card if you had a dead battery and you badly need the number in your contacts. It pays to have an extra phone, no need for it to be an expensive one.