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VoIP Java application

 
clojure forum advocate
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Hi.
Consider the typical chat application (a panel which lists all active users , text field to type into, a panel which displays all posts).
This applicatin is implemented as a Swing application.
Now this chat application should support VoIP according to :
When a user talks (using the microphone),all the active users should hear what he says.
My questions are :
1. How to collect the voice input from the user ? (using Java Communication API)
2. What to do with the uploaded voice (save it for example) ?
3. When the voice is transmitted to users, how to play it ?
4. Any open source libraries that I can make use of them ?
 
Bartender
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The Java Communication API is for working with serial and parallel ports. The Java Media Framework is the API for working with media devices and is likely your starting point.
 
Ranch Hand
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For call initiation, and call handling, SIP(Session Initiation Protocol) is used. Java implementation of this protocol is available as Jain-Sip API.
 
Bartender
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I would also suggest you look into the SIP protocol. I have not done this yet but did some high level research on it a few months back.
 
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