Hi All, I am very happy to say that after solving a lot of problems I got my Asterisk box talking (with a Digium's TDM20B card) last 48hrs I was sending message to many people asking help. I found some solutions myself but the base of those solutions given by the generous people in the list. I appriciate all of them once again. Now, I have minor problems like jitter and fine-tuning, I am going to start that part little by little, Please give me your advices, ideas, experience on this process of fine tuning.The dream I was looking in the last 5-6 months has become real. Thanks to everybody who help me directly and indirectly (I steel things from the list). and I would like to state that if I see any question in the list that I could give an idea on it. I would do it. Thank you all Kumara