The format of the command is AT+CUSD=[<n>[,<str>[,<dcs>]]], and the second parameter, <str>, is a string that should be enclosed in double quotes. E.g. AT+CUSD=1,”*555*87*1234#” AT+CUSD=1,”1″ See 27.007 for more details about AT+CUSD and V.250 for general AT command handling. If your phone gives an OK response to AT+CUSD=1,1 that is really bad, it should have … Read more
This works for me: private Uri ussdToCallableUri(String ussd) { String uriString = “”; if(!ussd.startsWith(“tel:”)) uriString += “tel:”; for(char c : ussd.toCharArray()) { if(c == ‘#’) uriString += Uri.encode(“#”); else uriString += c; } return Uri.parse(uriString); } Then in work code: Intent callIntent = new Intent(Intent.ACTION_CALL, ussdToCallableUri(yourUSSDCodeHere)); startActivity(callIntent);
There is no API for USSD request yet. The ticket to create this API is not closed. But the community has found several hacks how to add this feature to their applications. The first approach is to parse a log. Here is where you can find a class that do this. And here is a … Read more
It is possible using accessibility service. First create a service class: public class USSDService extends AccessibilityService { public static String TAG = USSDService.class.getSimpleName(); @Override public void onAccessibilityEvent(AccessibilityEvent event) { Log.d(TAG, “onAccessibilityEvent”); AccessibilityNodeInfo source = event.getSource(); /* if (event.getEventType() == AccessibilityEvent.TYPE_WINDOW_STATE_CHANGED && !event.getClassName().equals(“android.app.AlertDialog”)) { // android.app.AlertDialog is the standard but not for all phones */ if … Read more
Ussd api was added in API26. So since Oreo working with ussd looks smt like this: TelephonyManager manager = (TelephonyManager)getSystemService(TELEPHONY_SERVICE); manager.sendUssdRequest(“*100#”, new TelephonyManager.UssdResponseCallback() { @Override public void onReceiveUssdResponse(TelephonyManager telephonyManager, String request, CharSequence response) { super.onReceiveUssdResponse(telephonyManager, request, response); } @Override public void onReceiveUssdResponseFailed(TelephonyManager telephonyManager, String request, int failureCode) { super.onReceiveUssdResponseFailed(telephonyManager, request, failureCode); } }, new Handler()); … Read more