iOS8 causes both of my iPhones to ring simultaneously

Since updating to iOS8 my iPhone 5s and my wife's iPhone 5c will ring when someone calls my phone and vice versa when someone calls my wife's phone, the my phone will also ring. The only way to stop this is by turning icloud off on one of our phones. We never had this problem before even thoug we both use the same apple account and iCloud account. This has only happened with the upgrade to iOS8 on both if our phones. I can not find any any other way to turn this weird feature off. My phone was updated first with no problem with my wife's phone ringing when someone called me until I updated hers tonight. It always seems to amaze me that so many people including myself stay so committed to Apple when they release software with so many bugs. It is like they use us as their beta testers. It is poor rolliuts like this that keeps me wondering why I stay with Apple. It is like Apple dies this intentionally to force people to upgrade!!