Introduction
STK refers to SIM Tookit or SIM Tool Kit.
SAT refers to SIM Application Toolkit
Both terms are interchangeable.
Java Sample Code
Declaring variables
 static Variant vMOBITEK;
 static boolean bMOBITEK;
 static int iMOBITEK;
 static String sMOBITEK;
//construct objects for each class in "MobitekSTK6.dll"
static ActiveXComponent Modem = new ActiveXComponent ("MobitekSTK6.Modem");
static ActiveXComponent STKAPI = new ActiveXComponent ("MobitekSTK6.SIMToolKit");
static ActiveXComponent SMS = new ActiveXComponent ("MobitekSTK6.SMS");
To send SMS in java
public static void sendMessage()
 //SV: to send SMS; maximum 160 characters 
 {
 //########### turn delivery status report on #######################
 //call API to turn delivery status report on
 vMOBITEK = SMS.invoke("DeliveryReportOn");
 //the return value of "DeliveryReportOn" is a boolean
 bMOBITEK = vMOBITEK.getBoolean();
 //AQ : therefore assign bMOBITEK as return value of "DeliveryReportOn" 
 if (bMOBITEK)
 {
 System.out.println("Delivery status report is turned on.");
 }
 else
 {
 System.out.println("Delivery status report is NOT turned on!");
 }
 //########### end: turn delivery status report on #######################
 
 //------------------ send SMS ----------------------------------------
 //set value of property;
 //"ToNumber" is the recipient's number;
 SMS.setProperty("ToNumber", "0176096718");
 //"ToMessage" is the SMS to be send to the recipient; maximum 160 characters
 SMS.setProperty("ToMessage", "Hello from JAVA with SMS API version 7. Test no. 6");
 //AQ : call API to send new message
 vMOBITEK = SMS.invoke("SendSMS");
 //AQ : the return value of "SendSMS" is a boolean
 bMOBITEK = vMOBITEK.getBoolean();
 //AQ : therefore assign bMOBITEK as return value of "SendSMS" 
 if (bMOBITEK)
 {
 System.out.println("Message sent!");
 
 //try 3 times
 for (int i=1; i<=3; i++) 
 {
 try {
 //AQ : call API to get delivery report
 vMOBITEK = SMS.invoke("GetDeliveryReport");
 //AQ : the return value of "GetDeliveryReport" is a boolean
 //AQ : therefore assign bMOBITEK as return value of "GetDeliveryReport"
 bMOBITEK = vMOBITEK.getBoolean();
 if (bMOBITEK)
 {
 //when "GetDelIveryStatusReport = True", then get value of properties
 int DRStatus = SMS.getPropertyAsInt("DRStatus"); 
 String DRMNRecipient = SMS.getPropertyAsString("DRMNRecipient");
 String DRMsgRef = SMS.getPropertyAsString("DRMsgRef");
 String DRFDate = SMS.getPropertyAsString("DRFDate");
 String DRFTime = SMS.getPropertyAsString("DRFTime");
 String DRRDate = SMS.getPropertyAsString("DRRDate");
 String DRRTime = SMS.getPropertyAsString("DRRTime");
 
 if (DRStatus == 1)
 {
 //System.out.println("The status of your outgoing SMS with reference number, " + DRMsgRef + ", is " + DRStatus + ".");
 System.out.println("The status of your outgoing SMS with reference number, " + DRMsgRef + ", is delivered.");
 System.out.println("Your outgoing SMS was received by the SMS Centre on " + DRRDate + ", at " + DRRTime + ", and was successfully delivered to " + DRMNRecipient + ", on " + DRFDate + ", at " + DRFTime + ".");
 }
 else
 if (DRStatus == 0)
 {
 //System.out.println("The status of your outgoing SMS with reference number, " + DRMsgRef + ", is " + DRStatus + ".");
 System.out.println("The status of your outgoing SMS with reference number, " + DRMsgRef + ", is not delivered.");
 System.out.println("Your outgoing SMS was received by the SMS Centre on " + DRRDate + ", at " + DRRTime + ", and was NOT successfully delivered to " + DRMNRecipient + "."); 
 }
 else
 if (DRStatus == 2)
 {
 //System.out.println("The status of your outgoing SMS with reference number, " + DRMsgRef + ", is " + DRStatus + ".");
 System.out.println("The status of your outgoing SMS with reference number, " + DRMsgRef + ", is unknown.");
 System.out.println("Your outgoing SMS was received by the SMS Centre on " + DRRDate + ", at " + DRRTime + ", and NO status is available.");
 }
 
 break; 
 
 }
 
 else
 {
 System.out.println("No delivery status report available!"); 
 }
 
 //SV: wait for 5 seconds before looping; delivery report from GSM network takes time
 Thread.sleep(5000);
 }
 catch (InterruptedException e)
 {
 // TODO Auto-generated catch block
 e.printStackTrace();
 }
 } 
 }
 else
 {
 System.out.println("Message NOT sent!");
 }
 //------------------ end: send SMS ----------------------------------------
 }
To Read SMS in java
public static void readMessage() {
 //AQ : readMessage() function is for modem to read incoming message from the sender 
 //------------------------------------------- read SMS -------------------------------------------
 //call API to read incoming SMS 
 vMOBITEK = SMS.invoke("ReadSMS");
 //AQ : the return value of "ReadSMS" is a boolean, therefore assign bMOBITEK as return value of "ReadSMS"
 bMOBITEK = vMOBITEK.getBoolean();
 //if there is new SMS, then get property
 if (bMOBITEK)
 {
 //property "MN" is the sender's mobile number 
 String InNumber = SMS.getPropertyAsString("MN");
 //property "MSG" is the sender's message
 String InMessage = SMS.getPropertyAsString("MSG");
 //property "SCTS" time of the message received by SMS Centre
 String InTime = SMS.getPropertyAsString("SCTS");
 System.out.println("Incoming SMS Read \n From: " + InNumber + "\n Message: "+ InMessage + "\n Time: " + InTime );
 }
 else
 {
 System.out.println("No incoming SMS!");
 }
 //---------------------------------------- end: read SMS ----------------------------------------- 
 }
More Information
- MOBITEK Q24 STK Modem Hub
- MOBITEK STK API
- Java Sample Code for MOBITEK STK API version 6.2 — InputRequest() and InputSubmit()
- Using MOBITEK STK API version 6.2 with Java
- How to Send and Read SMS in Java with MOBITEK SMS API v. 9
- List of Customers of MOBITEK STK API and MOBITEK Q24 STK MODEM
- Does MOBITEK STK API Support Android OS?