A service session supervision platform is disposed between an access
network and an input node of a service-hosting network. During the
provision of a service, at least one atomic section is first defined.
Such atomic section consists of a determined sequence of events which are
involved in message exchanges with a subscriber. The supervision platform
detects and flags events forming the beginning or end of an atomic
section in a service session in progress for a subscriber by means of the
access network. A communication interrupt request from a subscriber is
processed by ascertaining if an atomic section is in progress for this
subscriber according to the atomic section beginnings and ends flagged by
the supervision platform, in order to determine whether or not the
communication must be interrupted immediately.