I have a Samsung Rogue. Earlier today I was making calls on it and it was fine. Later today my dad called me and I answered the phone, but there was zero sound. I kept trying to call anyone and no sound came up at all.
On the rogue there is a button on the side of the phone that lets you turn the screen off until you hit a button, then you have to touch the screen to unlock it. Everytime I got a call or made a call, it would start up as usual, then for some reason it would say I needed to unlock the screen, and when I did the call would still be up and there's no sound.

Also, whenever I go to my missed, recieved, or dialed calls, it automatically starts calling the top person on the list. I can send and recieve texts fine, and I've turned the phone off, taken out the battery, and retried, but it won't work.

Help please?