Network component of a cellular network, the cellular network comprising: - a plurality of access nodes each covering a cell area; - an access control node of the access network common to all access nodes for controlling the provision of traffic; characterised in that the network component comprises: - a classifier for classifying users of the cellular network into a first group of users and a second group of users, wherein: said first group of users include users in a cell area or areas covered by a single access node or group of access nodes and the provision of traffic communication for the first group is locally controlled by means of the network component; and the provision of traffic communication for the second group of users is centrally controlled by a central functionality including an access control node and a core network; - monitoring means configured for detecting an outage in a link between at least one of the access nodes and the access control node, and - a communication manager configured for: - checking if a call or SMS is set up by a user belonging to the first or to the second group of users; - taking control over the switching of calls and/or SMSs set up between users belonging to the first group of users locally; - if the monitoring means detects an outage in a link between at least one of the access nodes and the access control node, taking control over the switching of calls and/or SMSs set up between all users in the cell area or areas covered by the single access node or group of access nodes, regardless of whether the users are in the first group of users or in the second group of users; - if the monitoring means does not detect an outage in a link between at least one of the access nodes and the access control node, passing control to the access control node of the remaining calls and/or SMSs, the network component being arranged in communication with said single access node or group of access nodes. - a plurality of access nodes each covering a cell area; - an access control node of the access network common to all access nodes for controlling the provision of traffic; - a classifier for classifying users of the cellular network into a first group of users and a second group of users, wherein: said first group of users include users in a cell area or areas covered by a single access node or group of access nodes and the provision of traffic communication for the first group is locally controlled by means of the network component; and the provision of traffic communication for the second group of users is centrally controlled by a central functionality including an access control node and a core network; said first group of users include users in a cell area or areas covered by a single access node or group of access nodes and the provision of traffic communication for the first group is locally controlled by means of the network component; and the provision of traffic communication for the second group of users is centrally controlled by a central functionality including an access control node and a core network; - monitoring means configured for detecting an outage in a link between at least one of the access nodes and the access control node, and - a communication manager configured for: - checking if a call or SMS is set up by a user belonging to the first or to the second group of users; - taking control over the switching of calls and/or SMSs set up between users belonging to the first group of users locally; - if the monitoring means detects an outage in a link between at least one of the access nodes and the access control node, taking control over the switching of calls and/or SMSs set up between all users in the cell area or areas covered by the single access node or group of access nodes, regardless of whether the users are in the first group of users or in the second group of users; - if the monitoring means does not detect an outage in a link between at least one of the access nodes and the access control node, passing control to the access control node of the remaining calls and/or SMSs,