Hello I have OS X Yosemite Public Beta 3 installed on a MBA 11" half-2012 and iOS 8 on an iPhone 5. I can call from OS X FaceTime using the iPhone, to regular phone lines. But how can I send text messages (SMS) to regular mobile phones? I mean not iMessage. From Messages on OS X if I type a regular mobile number as recipient, it turns to red as I did on previous OS X and I can't send anything. How can send SMS from OS X using my iPhone? Thank you!