Voicemail password has locked phone
I have not set up my voicemail or voicemail password yet and now I cannot use or open or turn off my phone because of the "voicemail password" pop up is on the screen. It won't even let me answer a call because the "enter voicemail password" pop up is in the way and it will not let me cancel out of it.
iPhone 4, iOS 6.1.3, Locked phone