Patent ID: 7106755

Claim:
A message transfer part (MTP) level 3 protocol integrating apparatus of a network comprising: a narrowband-ISDN user part (N-ISUP) network; a broadband-ISDN user part (B-ISUP) network; and a MTP level 3 protocol integrating unit receiving a predetermined message from a lower layer of protocol and determining whether the message is a N-ISUP message type or is a B-ISUP message type based on a code within the received message, the MTP level 3 protocol integrating unit simultaneously interfacing the corresponding message to either the N-ISUP network or the B-ISUP network according to the determined message type of the predetermined message, wherein the MTP level 3 protocol integrating unit is capable of interfacing an N-ISUP message to the N-ISUP network and interfacing a B-ISUP message to the B-ISUP network.