title: How to use SIP (voip) into my application to make video calls in Iphone sdk?
body: <p>I need to use SIP(VoIP) in my applications can anyone suggest me how to start with this with an sample code in objective-c or sequence of steps to do.</p>
  
  <p>Anyone's help will be much appreciated.
  Thanks to all,
  Monish.</p>