I have panasonic tda100 with 2 co analog lines connected. for example co line 1 number is 1112222 and the line 2 number is 2223333 both co line is configured DIL at ext 101 which is the operator. what I want to do is if the line 1 (1112222)is busy or no answer in a certain period of time the incoming call will be forwarded to the other available extensions or group of extensions. I'm not sure if this possible, your advice will very much helpfull. I really Appreciate if someone could provide me answers and step by step on how to come up with this. thanks in advance!