gistfile1.java

  localIp = getIPAddress(true);
  localEndpoint = localIp + ":" + localPort;
  remoteEndpoint = remoteIp + ":" + remotePort;
  sipFactory = SipFactory.getInstance();
  sipFactory.setPathName("com.telestax");

  Properties properties = new Properties();
  properties.setProperty("tavax.sip.OUTBOUND_PROXY", remoteEndpoint + "/"
    + transport);
  properties.setProperty("tavax.sip.STACK_NAME", "androidSip");

  try {
   sipStack = sipFactory.createSipStack(properties);
   System.out.println("createSipStack " + sipStack);
  } catch (PeerUnavailableException e) {
   e.printStackTrace();
  }
  try {
   udpListeningPoint = sipStack.createListeningPoint(localIp,
     localPort, transport);
   sipProvider = sipStack.createSipProvider(udpListeningPoint);
   sipProvider.addSipListener(SipStackAndroid.getInstance());
  } catch (PeerUnavailableException e) {
   e.printStackTrace();
  } catch (Exception e) {
   e.printStackTrace();
  }