SMS Status Report

Hi.
I have an application that send a SMS message, and i would to know it the message has been received using StatusReport.

I'm trying with
iSmsMtm.SmsHeader().Message().Status();
where iSmsMtm is a CSmsClientMtm object.

The Status() method has the next declaration:
inline RMobileSmsStore::TMobileSmsStoreStatus Status() const;
and the return values are one of the next:
      EStoredMessageUnknownStatus,
      EStoredMessageUnread,
      EStoredMessageRead,
      EStoredMessageUnsent,
      EStoredMessageSent,
      EStoredMessageDelivered

The problem is the call to Status() always returns 1
(I would like to receive one of the two last values).

Somebody can help with this issue?
Thank you.