I'm having some issues with calling from Yosemite. Unlike many here, iOS8 on my 5S and Yosemite on my late 2013 rMBP has the SMS / call continuity working just fine. However, everyone I've talked to from my Macbook has said I'm too quiet. I've tried the obvious stuff - like turning the mic gain up to maximum in the sound settings, with no luck. Has anyone else experienced this? Is it a beta bug? I should note with an external mic plugged in (or apple earbuds) it works fine. ---------- Also, it's not my macbook's mic - it works fine via FaceTime audio and in games.