摘要 |
A procedure and system for setting rates between two predetermined subscriptions in a telephone network without the necessity of substantial system changes to the telephone network. Calls between two predetermined subscriptions can be rated according to a special tariff and changes can be easily and flexibly included in the normal invoicing. When the number of subscriptions per customer is limited to two, the common call number for all customers is the same, e.g. 020100. When this number is dialed, the call is directed to the wired network subscription specified in the subscriber number pair, which is stored in a database, when the call is made from a mobile station, and vice versa. When the number of subscriptions connected to the system by the customer is greater than two, the common call number comprises a prefix part which is the same for all customers and on the basis of which the telephone network exchange recognizes the service call of intelligent network calls and specially rated calls, and a suffix part which is an integer and which, via the intelligent network, determines the desired individual subscription among subscriptions selected to be included in the system by the customer.
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