I had no phone ringer, vibration, text alert or keyboard clicks. I was receiving replys from Siri. When I selected a different ringtone through the “Settings; Sounds” tab, I could hear the ringtone just fine. My speaker appeared to be working ok. I tried resetting every option including airplane mode. My volume buttons on the left side of the phone were working ok and the ringer volume display would pop up and change when I used these buttons. I was missing all phone calls and text alerts and I would have to just return all missed calls. I finally realized that the small switch located on the left side of the phone just above the two volume buttons had slipped into the center position which was neither on or off. This is located behind a rubber tab on my phone case, so it wasn’t normally visible. When I reset this switch to the forward position where the orange color was not visible, my phone ringer, vibration, text alert and keyboard clicks were all restored.
When you follow too closely and another driver "cuts" in front of you, the normal reaction is to slam on your brakes and swerve out of the way. Swerving out of the way most often results in cutting someone else off or possibly driving off the roadway. It might also result in the car behind you crashing into you or into other cars around you. If another driver "cuts" in front of you, just take your foot off the gas. This will give you space between your car and the other car, and you can avoid swerving into another lane. Dont overreact if you are cut off.