How is it possible to do USSD requests on Android?

android ussd
artem picture artem · Mar 29, 2011 · Viewed 23.6k times · Source

Some custom dialer apps (for example, Dialer from MotoBlur) are able to do USSD requests. Is it realy impossible to do this via SDK?

Answer

alexleutgoeb picture alexleutgoeb · Apr 1, 2011

You can dial ussd requests like any other number with an call-intent like this one:

String encodedHash = Uri.encode("#");
String ussd = "*" + encodedHash + "12345" + encodedHash;
startActivityForResult(new Intent("android.intent.action.CALL", Uri.parse("tel:" + ussd)), 1);

However, afaik, it's currently not possible to parse the result string in your app.

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