If you are searching for the best calling card in terms of connectivity as well as the rate for Nepal, there is a  good news for you you all. I highly recommend you to use kantipurtel.com as they offer the best compact in calling cards to Nepal from USA. I have started using their service in June 2008. It gives 70 minutes to KTM for the worth of $5.00. It gives 43 minutes to other cities like Dharan, Biratnagar. The connection is good and the voice is very clear. I had been trying many cards in search for the best deals. I have used many cards from STI company such as  CTA Africa,  free and other cards. The Free card from STI gives only 25 minutes to cities like Dharan and Biratnagar  but one has to try many times and sometimes you really don’t get through it, it’s not my concern to promote their business , but I just want to help other Nepalese who have been facing hard time as I did before I found kantipurtel.com