Main article: Multi-user MIMO. Recently, results of research on multi-user MIMO technology have been emerging. While full multi-user MIMO (or network MIMO) can have a higher potential, practically, the research on (partial) multi-user MIMO (or multi-user and multi-antenna MIMO) technology is more active.
There are two ways to decline a call on the iPhone. 1  By pressing the Sleep/Wake button. 2  By tapping the 'Decline' button onscreen (appears only when the phone is unlocked, as you've mentioned)
Well, you can block these numbers to your Samsung Galaxy S3 with the following simple steps: 1  On your Galaxy S3, launch the Phone app. 2  Tap the Options key and then select Call settings. 3  Tap Call rejection. 4  Slide the Auto reject mode switch to the right to turn on automatic call rejection.