• Introduction
• About the evaluation version
• Installation
• How to send SMS Messages
• JavaDoc[TM] Files

Introduction

RSmsUcp is a Java[TM] component that can sms messages using the Ucp protocol. The component can establish a connection to a SMSC (Short Message Service Centre) using:

• Analog Modem and telephone line
• or with TCP/IP

About the evaluation version

Installation

In order to install the component you must:

• include RSmsUcp.jar in your CLASSPATH

if you want to use a dial up connection you will also need the Java Communications API:

• Installation or Java Communications API. Click here to download it. You must download the communications API and follow the directions in the file PlatformSpecific.html. For exampe, if you are running the Java platform on windows you must:
• copy win32com.dll to your jdkdirectoy\bin
• copy comm.jar to your jdkdirectoy\lib. Include comm.jar in your CLASSPATH.
• copy javax.comm.properties  to your jdkdirectoy\lib

if you want to use TCP/IP, no additional libraries are required.

How to send SMS Messages

The component includes a high level class called SmsSender which allows you to send sms message without having to deal with the ucp details. This class works in the following way:

1. create SmsSender and provide the adapter as parameter (modem or tcp/ip)
2. create message ( you can use createSMS30, createSMS01 or createSMS51)
3. send the message with sendMessage()

1. Using a dial up connection

The following program will send a sms using a dial up connection:

// create object
Modem modem= new Modem();
modem.setPortName("COM3");
modem.dataBits=SerialPort.DATABITS_8; // do not forget to check if the SMSC uses 7 or 8 bits

// open port , initialize and connect
if (modem.openPort()) {
if (modem.initializeModem())

if (modem.dial("900900900")) {

// send the sms now using the Modem adapter
SmsSender sender=new SmsSender(modem);
sender.createSMS51("123","456","Hello");
sender.sendMessage();

// close connection
modem.hangup();

}
modem.closePort();
}

2. Using a TCP/IP connection

The following program will send a sms using a tcp/ip connection:

// create object
TcpIpAdapter tcp=new TcpIpAdapter();
tcp.connect(ServerAddress,port);

// send the sms now using the tcp/ip adapter
SmsSender sender=new SmsSender(tcp);
sender.createSMS51("123","456","Hello");
sender.sendMessage();

tcp.disconnect();

 

3. Using low level classes

As an alternative to the SmsSender class you can also create the ucp messages yourself. This has the advantage that you can use all available features. The low level classes can be used as follows:

1. create a message (for example, BasicSubmitMessage() or TransferMessage51())
2. send the message
3. get response from SMSC
4. evaluate response

Example:

// step 1, create message
BasicSubmitMessage currentMessage= new BasicSubmitMessage();
((BasicSubmitMessage) currentMessage).originator=from;
((BasicSubmitMessage) currentMessage).recipient=destination;
((BasicSubmitMessage) currentMessage).alphaMessage=message;

// step 2 , send message
byte[] b=currentMessage.toBytes();
adapter.transmitBytes(b,b.length); // adapter is either modem or tcpip

// step 3 get response
byte[] responseb=adapter.receiveData(UcpMessage.ETX_CHAR,30);

if (responseb==null) throw new SmsException("Response is null");

// step 4 process response
currentResponse=UcpMessage.parse(responseb);

if (currentResponse==null) throw new SmsException("Could not parse "+ new String(responseb));

if (currentResponse instanceof ResponseMessage) {

if (((ResponseMessage) currentResponse).Response.compareTo("A")==0) System.out.println("Message was sent successfully");
elseif (((ResponseMessage) currentResponse).Response.compareTo("N")==0) System.out.println("Message failed: " + ((ResponseMessage) currentResponse).errorDescription);
else throw new SmsException("Response not recognized "+ new String(responseb));

}
else throw new SmsException("Response message not received : "+ currentResponse.getClass());