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)
Answer a call. When you receive a call, you can either answer it, reject it or silence the incoming call alert. Just so you know... Please select the red text to see instructional images. Select option. Select one of the following options: Answer call, go to 1a. Reject call, go to 1b.