The trading call system includes a circuit control unit, connected to a plurality of trunk circuits and a plurality of line circuits 11. The trunk circuits are connected to telephone circuits, while the line circuits are connected to trading call terminal devices. A first internet circuit connecting adapter 31 is connected to some line circuits, and a LAN is connected to the circuit control unit through the adapters. A network server and a router are connected to the LAN, and an internet 40 is connected to the LAN through the router. A PC and a second internet connecting adapter are connected to the internet, and one or more trading call terminal devices are connected to the second internet connecting adapter.

A communication system and communication method adapted so that the user of one of the communication terminals can more easily communicate with another one connected to the internet through the public network. Connection management servers for relay and manage the communication are provided at nodes between the internet and the public network. Each of the connection management servers assigns an IP address to the communication terminal connected to the internet through the public network, and registers the IP address and the telephone number. When receiving a communication request, the connection management server specifies a communication route to the communication terminal on the basis of the telephone number of the called-side communication terminal set in the communication request. The server checks if the called-side communication terminal is connected to the internet on the basis of the above registration. If it is connected to the internet, the server relays the communication request. If it is not connected thereto, the notice that it is not connected is transmitted to the calling-side communication terminal. If it is not connected yet, the server regards the called-side terminal as having its telephone connected to the telephone channel, and causes speech transmission between that telephone and the calling-side communication terminal.

A telecommunications system and method are disclosed for providing information relating to a telephone call associated with an access point within a telecommunications system, such as a telephone line or telephone number, to a software application in substantial real time. The system and method include assigning a destination address to the telecommunications system access point about which telephone call information is desired, and sending an electronic message to the destination address in response to a telephone call being established utilizing the access point. The electronic message includes, among other things, information relating to the telephone call and the access point. Within the context of a telecommunications switch for controlling traffic associated with a plurality of telephone lines, when the switch receives a telephone message, such as a setup message or backward message, having a destination address therein, the switch sends an electronic message to the destination address upon receipt of the telephone message. The electronic message includes information identifying the telephone message, and the switch. In this way, information relating to the usage of a telecommunications access point may be provided in real time for billing or tracing purposes.

In the inventive procedure for implementing event-based billing in conjunction with services provided for consumers via a telephone connection in a telecommunication system, a connection is set up between a consumer's terminal device and an intelligent peripheral, a service is selected in the peripheral by means of the terminal device, an assessment request based on the selected service is sent from the peripheral to a service control point and, based on the assessment requests sent by the peripheral, an event-based bill for the customer is produced.

A method for authenticating an end user in a network environment is provided that includes positioning an identification element in a first device that is operable to provide an interface for an end user. The first device is further operable to communicate with an internet protocol (IP) network and with a second device. The end user is then authenticated with a selected one of the first and second devices through the IP network using the identification element such that the end user may operate the first and second devices in multiple access networks that cooperate to provide connectivity to the end user. Each of the access networks is operable to facilitate communications between the end user and the IP network.