Hello World

 SmppClient client = new SmppClient();

 client.Connect("127.0.0.1", 7777);

 if (client.Status == Inetlab.SMPP.Common.ConnectionStatus.Open)
 {
     client.Bind("username", "password", Inetlab.SMPP.Common.ConnectionMode.Transmitter);

     if (client.Status == Inetlab.SMPP.Common.ConnectionStatus.Bound)
     {
         IList<SubmitSmResp> respList = client.Submit(
             SMS.ForSubmit().From("8888").To("7917123456").Text("Test SMS")
             );

         if (respList.Count > 0 && respList[0].Status == Inetlab.SMPP.Common.CommandStatus.ESME_ROK)
         {
             Console.WriteLine("SMS has been sent");
             foreach (SubmitSmResp resp in respList)
             {
                 Console.WriteLine("MessageId: " + resp.MessageId);
             }
         }

         client.UnBind();
     }

     client.Disconnect();
 }