In the network world there are so many new and old protocols that was made specifically for real time application and in our case we will describe some of them that are concerned with voice but unfortunately these protocols (like: Session Initiation Protocol (SIP),H.323 ,….) need a special hardware to under stand there work and also we read some topics about the Voice Over Internet Protocol and the main problem in this is that there was no information about how to program or what to use to do the work all what we found is just explanation about how these protocols work over the network ,simply just description of meta work that these protocols do to deal with the voice in the network environment . So we changed our work to use a Java Media Framework (JMF).
JMF is a collection of classes and interfaces that build some API’s that deals with real time things like sound, video ,etc .
Description :
Our project is divide into two separated parts the voice\text chatting part (Instance Messages)with ftp and the voice mail part where both of them lays in the Client side and the Server side ,on each Client and Server we divide the work to be done by separate classes and then the main class will integrate them to do the work ,this thing increase the project functionality and make it easier to under stand but it still difficult to separate the work 100% and divide it on classes so that each one do a separate part of the work .