beckoning sub

[daves]

I had a girl's varsity game tonight. In the second quarter a sub for team A came to the table. The scorekeeper sounded the horn for the sub. I beckoned the sub and she didn't come in. I beckoned a second time and verbalized loudly for her to come in. She still didn't come in. I beckoned and verbalized a third time and the coach stood up and said, "never mind, not now." and sent her back to the bench. Our association president was watching the game because he was scheduled to do the boy's game after the girl's game. He asked me whether that was legal. I said that I didn't know as it had never occured before for me. He asked me to look into this and see if it is legal. So, is it legal? How would some of you have handled this?