Android. Set phone number when sending message by hangout

I want to set phone number when I send message by hangout.

When I use sms, it can be done as below.

Intent sendIntent = new Intent(Intent.ACTION_VIEW);
sendIntent.setData(Uri.parse("sms:"));
sendIntent.putExtra("sms_body", message);
sendIntent.putExtra("adress", phoneNumber);
context.startActivity(sendIntent);

But I don't know how set phone number or target by phone number in hangout.. Here is my current code using hangout.

    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) //At least KitKat
    {
        String defaultSmsPackageName = Telephony.Sms.getDefaultSmsPackage(context);

        Intent sendIntent = new Intent(Intent.ACTION_SEND);
        sendIntent.setType("text/plain");
        sendIntent.putExtra(Intent.EXTRA_TEXT, message);

        if (defaultSmsPackageName != null)
        {
            sendIntent.setPackage(defaultSmsPackageName);
        }
        context.startActivity(sendIntent);
    }