/*

Easy to become a programmer.
On IPT Call Center System program.

Using a code line: message.Substring(startIndex, length).Trim();



Step 1: Click Smartphone tab. And set OFF.
- OFF: Allow receive message from Smartphone. (UDP Port: 5820).
- Why? I will use this port to test. (Error duplicate port).


Step 2: Click Programming tab. And set ON.
- ON: Allow receive message from UDP Connection.
- Then click C# UDP Code button.


Step 3: Programming
- Enter UDP Port 5820
- Copy the below code, paste. And then test it.


Step 4: Test
- On the phone. Open IPT Call app. Click More. Click Test.
- Click Incomming Call. The phone will send a datagram package to Wifi network.
- IPT Call Center System will catch and show this data on the screen.
- Done. Done. Done.


Step 5: I want to reset the system as Default.
- IPT Call Center System. Click Settings. Click Reset Data. Done.


===================================================================
The sample datagram package from your phone

^^<U>000001<S>345678$01 I S 0000 G A1 12/28 02:02 AM 2024896789      IPT Call                       

===================================================================

*/




/********************************************
	THE SAMPLE CODE IS HERE
********************************************/


using System;         
public class ExtractMessage
{
    static string message = "{$receivedMessage}";
	
    static public string GetNumber()
    {
        return message.Substring(53, 15).Trim();
    }
	
    static public string GetLine()
    {
        // Test. Test. Test.
        // I want to catch and show the datagram package on screen to see the data format. 
        // Then I will extract the phone number and status.

        return message; // 01
    }
	
    static public string GetType()
    {
        return message.Substring(24, 2).Trim();
    }
	
    static public string GetIndicator()
    {
        return message.Substring(26, 2).Trim();
    }
}