Where are you from? if you live in U.S canada its two weeks tops.
I dont know about other places.
what is timeframe they must call in?
Yep. The Doc is supposed to provide you a post test counselling. Its must if someone is tested poz.
I had the similar doubts, When I was taken to emergency, they did some tests and I am sure they did HIV. They didn't say anything about HIV. Thats a relief.
Usually, If you get a call from the doctor thats a concern. you dont hear anything from them after the test, then you are good.