SECURITY IN TELECOMMUNICATIONS NETWORK GATEWAYS

摘要

A method of transferring signalling messages between an Internet Service Provider (ISP) (4) and an exchange (2) of a telecommunications network for the purpose of allocating and controlling circuit switched communication channels between the exchange (2) and the ISP (4). The method comprising routing the signalling messages via an SS7/IP gateway which provides for conversion of messages between an SS7 protocol used in the telecommunications network and an IP based protocol used in the network which connects the SS7/IP gateway 7 to the ISP 4. For each message received at the SS7/IP gateway 7 from the ISP 4, the SS7/IP gateway 7 confirms the right of that ISP 4 to control a circuit switched communication channel identified in the message.