Process for signalling cost information upon connection establishment and a tariff server therefor

摘要

A process for signalling cost information in a telecommunications network, wherein the subscriber's data terminal establishes a connection to an exchange, the exchange has a call handling function which makes a tariff inquiry to a tariff server and the tariff server sends a tariff response for the requested connection to the call handling function of the exchange. The call handling function forwards the tariff response to a CDR generating function in the exchange, the CDR generating function forwards cost information to the cost communication function of the exchange and the cost communication function communicates the cost information to the subscriber's data terminal.