Method, devices, and computer program for negotiating QoS and cost of a network connection during setup

摘要

The invention relates to a method for controlling establishing a network connection between a client (C) and a network comprising the phases of authenticating, authorizing, and accounting, comprising a further interim negotiation phase of negotiating (3, 4, 5) a connection or business mode of authorization and accounting. The invention further relates to a network access system (C, S), network access client device (C), network access trading device (S), and a computer software product.