iphone 5 not ringing going straight to voicemail
My dad's iPhone 5 is not ringing and has been just going straight to voicemail all day. Yesterday, I updated his phone and restored it from a back up of a previous phone after he accidentally wiped his new one. I haven't found any solutions and it is hard to fix it from 800 miles away. Has anyone had this issue and have a solution?
iPhone 5, iOS 6.1.3