I'm new to voice and I'm studying for CCNA then on to CCNP and getting accustomed as well wanting to explore CCNP and VOIP in general. I want to set up a direct link with a friend to his house and have a phone at each end. Also, possibly get two for here to test. I'm sure I can do the research on how to set the individual router up but is it difficult? Also, do you need computer software as an intermediary (or is this just for directory/voicemail?). I can get the 2620XM for about a hundred dollars cheaper than the 2621XM ($200 instead of $300) and if I can get two for each link and one for local use it would be perfect. I'm a student so I'm not exactly in the money. If you have an alternative suggestion as well please feel free. Thanks!