inadvertent time out??

[johnnyrao]

Sometimes you have to use caution, however. Last week I was calling a JV game. I was lead coming to trail as Team A was bringing the ball upcourt from the backcourt. Coach of Team A (the far bench to me) calls "Time". The trail to new lead lets it go so I blow the whistle and call "time-out". I report the TO and my partner comes over and tells me he didn't think Coach A wanted a TO, he was telling his point guard to take his time dribbling up court. He had a point. After the teams came back on the court I was now the new center right in front of Coach A so I asked him. He told me he was calling a time-out. Made me feel better but I can see where this can be a confusing area for officials. Sometimes administering a TO can be tough, especially in a loud gym. Is there anything in the rule book that the coach has to say "time out"?