siniypin

        public static void Main(string[] args)
        {
            //Initialization skipped
            ua.CallManager.IncomingCall += CallManager_IncomingCall;
            ua.CallManager.Ring += CallManager_Ring;
            //Loop is skipped
            
        static void CallManager_Ring(object sender, RingEventArgs e)
        {
            System.Console.WriteLine("Call {0} ring event.", e.CallId);

siniypin

static void ua_Log(object sender, LogEventArgs e)
{
  if (e.Data.Contains("TCP transport destroyed with reason 70016: End of file (PJ_EEOF)"))
  {
    System.Console.WriteLine("SNAP, SERVER WENT DOWN");
    ua.AccountManager.Accounts.All(x => x.Unregister());
  }
}

siniypin

public class ChatControl
{
  private void client_LoginStateChanged(object sender, EventArgs e)
  {
    if (client.LoginState == LoginStateEnum.Logon)
        client.Messanger.IncomingMessage += Messanger_IncomingMessage;
    if ((client.LoginState == LoginStateEnum.Logoff || client.LoginState == LoginStateEnum.LoginError) 
        && client.Messanger != null)
        client.Messanger.IncomingMessage -= Messanger_IncomingMessage;
  }