Abstract: An interface between an SS7 gateway and an IP network allows application layer data, such as MAP and TCAP messages, to be transported unchanged through the interface. The invention also provides a protocol for transporting MAP and TCAP messages that eliminates the need for SS7 protocols, and in particular, eliminates the need to implement the Signaling Connection Control Part (SCCP). The interface is particularly useful for connecting a private wireless office system to an SS7 network to allow roaming between the private wireless office telephone system and the PLMN.

Abstract: An integrated IP-SS7 gateway and home location register system is disclosed for transmitting and receiving messages in a wireless communication network. The system comprises a processing system including a home location register (HLR) storing wireless user subscriber information. A first interface is in communication with a wireless office system (WOS) network for routing messages using a TCP/IP protocol. A second interface is in communication with a public land mobile network (PLMN) for routing messages using an MTP protocol. A gateway function is operatively connected to the HLR and the first and second interfaces for controlling message transmission therebetween.