One of the coolest features of Yosemite, is Continuity / Handoff, which lets iOS and OS X device users continue a certain action even after switching devices — including placing phone calls and sending regular text messages on a Mac. Unfortunately, not all Macs and MacBook models can support it, as older models do not have Bluetooth 4.0 LE chips inside. Luckily, after some digging, a Mac user revealed on MacRumors‘ forum that 2011 MacBook Pros can support Continuity / Handoff features after a little tinkering.
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