Greetings, I've noticed in iOS 9.3 PB1 that the sleep/wake button now ends calls, no matter what screen you're on while using wired/Bluetooth headphones. Also, this happens while on speaker phone. I've hung up on numerous people several times due to this never being a thing since my original iPhone. When I'm in a call on my Bluetooth headphones, I turn off my screen, and dump my phone in a pocket. I've buried in numerous settings to see if there's a way to change it back, but to no avail. Anyone else experiencing this? Any way to go back to where sleep/wake button turns the screen off? Also, if this is intended, is it a welcome change? Thanks in advance for all your help guys/gals. UPDATE 1/27/16 - Seems to be fixed on iOS 9.3 PB2.