[asterisk-users] Creating an SIP softphone

[Kutman.DK at forces.gc.ca]

Hello,

I have been reading up on the capabilities of the Asterisk-Java library.  I believe that this library can act as an interface between a Java GUI(custom softphone) and the Asterisk server.  Seems like the Live API would be easiest to use to make the connection to the Asterisk server and to set-up calls.  One thing I am not sure about is how to transmit the audio streams between users' PC's once the calls are routed.  I can see that the Asterisk-Java library can't be used for transmitting real-time audio(phone conversations).  Would anyone have an idea about how to complete the application I am trying to make.  To be clear, I am creating a custom softphone, but can't find much information on how to create the audio transmission.  Could anyone provide me with some advice on how to complete this type of softphone.  I noticed that there is a JAIN(SIP) API that can be used with java, but I would need more information or examples on how this can be used for my application to use this API.  I would prefer to use the SIP protocol, since it seems like its the most common.

Thanks in advance,

Denis