Resumption of play following a time out during free throws

[truerookie]

I need clarification of the proper procedure for this. A4 is at the free throw line shooting a one plus one. Team B coach calls a time out before A4 receives the ball. The time out is granted after the time is over here is where is gets cloudy for me.
1. Are you required to blow your whistle to make the ball live again? I know you put air in your whistle to signal ready for play after time outs during the course of the game in any other situation this one area is not clear however.

2. Do you go into administering the free throws and the start; stop signal will make the ball live again by your partner or yourself on a successful or failed attempted?

Like the name states I am a true rookie however, I look for the small things in officiating that makes a differences. I cannot find anything in my references to clear this procedure up for me. All feedback is greatly appreciated.