Add supportsAdn()

        return ((phone.getPhoneType() == Phone.PHONE_TYPE_GSM)

                || (phone.getPhoneType() == Phone.PHONE_TYPE_SIP));

    }

    /**

     * Return true if phones with the given phone type support ADN

     * (Abbreviated Dialing Numbers).

     *

     * Currently this returns true when the phone type is GSM

     * ({@link Phone#PHONE_TYPE_GSM}).

     *

     * This is using int for an argument for letting apps outside

     * Phone process access to it, while other methods in this class is

     * using Phone object.

     *

     * TODO: Theoretically phones other than GSM may have the ADN capability.

     * Consider having better check here, or have better capability as part

     * of public API, with which the argument should be replaced with

     * something more appropriate.

     */

    public static boolean supportsAdn(int phoneType) {

        return phoneType == Phone.PHONE_TYPE_GSM;

    }

}