ur project seems interesting. Well i would suggest u to visit openh323.org. Those guys have an open h323 forum and theres also an open source code along with the application which makes voip possible between two pcs once the software is loaded onto them. There are also some other sites avaialable. Probably you can mail me the details at vickythescorpion at at the rate of rediff mail dot come. I’m sorry to write it that way but its not allowed to publish ur ids here.