[sip-comm-dev] Sip register and invite


Hi all,
  I am actually building a video conferencing application(in java) in LAN .
I have recently started with RFC 3261 .
I want to know how do i send an register and invite . Suppose user1 ip - user2 - and proxy server - . I am not using any
domain since in LAN .Now can send me a pseudo code for register and invite .
I have tried but actually its not working .

Thanks in advance .....PLzzzzz help..