Add an API call to update the status of a pending outbound SMS message and

    void sendText(String callingPkg, in String destAddr, in String scAddr, in String text,

            in PendingIntent sentIntent, in PendingIntent deliveryIntent);

    /**

     * Update the status of a pending (send-by-IP) SMS message and resend by PSTN if necessary.

     * This outbound message was handled by the carrier app. If the carrier app fails to send

     * this message, it would be resent by PSTN.

     *

     * @param messageRef the reference number of the SMS message.

     * @param success True if and only if the message was sent successfully. If its value is

     *  false, this message should be resent via PSTN.

     */

    void updateSmsSendStatus(int messageRef, boolean success);

    /**

     * Send a multi-part text based SMS.

     *