We are kashif and faisal from Pakistan .We have to do a project on VOIP. But we don’t know from where we should start gaining knowledge. Will you please tell us that how we should precede i.e. what we should study first and then how to procede. We think that first of all we have to study data communication in detail then, web telephoney and then protocols like sip and h323. will you please guide us that how we should procede. We will be thankful to you.