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Now any of your devices can be used as the front end for phone calls and texts.
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But only your iPhone could exchange SMS or MMS messages with people using non-Apple devices, and voice calls on your Mac required a third-party app such as Skype. Prior to iOS 8 and Yosemite, Messages offered a more limited version of this capability, in that conversations with other people who also used iMessage (on a Mac or iOS device) could be started on one device and continued on another. It does need to be turned on and signed in with the same Apple ID (in Messages and FaceTime)-and for phone forwarding, connected to the same Wi-Fi network. Note: Your iPhone need not be in Bluetooth range (about 30 feet) of your Mac or iPad. As long as your iPhone is in the vicinity of your other device (in your pocket or purse, say, or even in the next room), you can make and receive phone calls-and send and receive SMS/MMS messages-using your Mac, iPad, or iPod touch. Included among the Continuity features introduced in iOS 8 and Yosemite are a pair of useful capabilities that let your Mac, iPad, or iPod touch serve as an extension of your iPhone (you do have an iPhone, right?). Share iPhone Calls and Texts across Devices
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