URL url = new URL("http://www.mobinawa.com/http_api?action=sendsms&username=6xxxx&password=pwd&from=myId&to="+phoneNumber+"&msg="+textMessage);

        //System.out.println(param.toString());
        URLConnection conn = url.openConnection();
        conn.setDoOutput(true);

        OutputStreamWriter writer = new OutputStreamWriter(conn.getOutputStream());

        StringBuffer answer = new StringBuffer();
        BufferedReader reader = new BufferedReader(new InputStreamReader(conn.getInputStream()));
        String line;
        while ((line = reader.readLine()) != null) {answer.append(line);}
        writer.close();
        reader.close();

        System.out.println(answer.toString());