code: public static Intent dialPhone(String phoneNumber) {
          Intent intent = new Intent();
          intent.setAction(Intent.ACTION_DIAL);
          intent.setData(Uri.parse("tel:" + phoneNumber));
          return intent;
      }
docs: Dials (but does not actually initiate the call) the number given.
  Telephone number normalization described for {@link #callPhone(String)} applies to dial as well.
  
  @param phoneNumber Phone number