callFrames = Collections.synchronizedMap(
new HashMap<String, CallFrame>());
closed = false;
// create sip stack
try {
userAgent = new UserAgent(this, peersHome, logger);
} catch (SocketException e) {
SwingUtilities.invokeLater(new Runnable() {
@Override
public void run() {
JOptionPane.showMessageDialog(null, "Peers sip port " +