Time Out Question

[kraz423]

I need some help with this one:

Team A is in their front court and down 2 in the closing seconds of the ball game. A1 is about to travel when there is "time out" called from their bench area. By the way this is a 3-whistle game. The "slot" in front of the bench hits their whistle to signal Time Out almost simoultaneously the "trail" hits their whistle to call a travel. When making eye contact with the bench they notice the head coach was too far down the bench to call a time out and it be heard that clearly. The calling official realizes it was an assistant who called the time out. The head coach admits that it was an assistant but still wants that time out. A long discussion ensues and the result was.....

I need some help with that one and I will post how it was handled after I get some feedback. If you reply and have a clue please include some reference. Thanks for any and all help!!