METHOD, SYSTEM AND SIGNALLING POINT FOR TRANSPORTING DUPU MESSAGE

摘要

The present invention provides a method for transporting a Destination User Part Unavailable (DUPU) message, including: carrying along with a DUPU message the originating point code corresponding to the originating signalling point which has triggered the DUPU message by a first signalling point in which a user part is unavailable and returning the DUPU message to a second signalling point; and forwarding, by the second signalling point upon receiving the DUPU message, the received DUPU message according to the originating point code which is contained in the message. The present invention also provides a system and a signalling point for transporting a DUPU message. According to the present invention, correct transmission of the DUPU message is be attained with the workload in forwarding messages lightened and network consumption reduced.