Method for providing communication services of a mobile communication network to a plurality of telecommunication devices (21, 22, 23), wherein the mobile communication network comprises an access network and a core network, the access network comprising a plurality of radio cells (10, 11) of the mobile communication network, wherein the mobile communication network is able to offer a plurality of available service capabilities to the plurality of telecommunication devices (21, 22, 23) or to a subset of the plurality of telecommunication devices (21, 22, 23), the available service capabilities corresponding to groups of service capabilities, the groups of service capabilities including at least -- the mobile communication network providing a varying degree of mobility functionality, -- the mobile communication network providing different quality of service levels, -- the mobile communication network providing different levels of security measures, -- the mobile communication network providing a varying degree of identity handling, wherein the method comprises the step of establishing a connection or initiating an exchange of data between the mobile communication network and the plurality telecommunication devices (21, 22, 23), wherein prior to or upon -- the establishment of the connection or -- the initiation of the exchange of data a service capability information is sent from the mobile communication network to at least part of the telecommunication devices (21, 22, 23) of the plurality of telecommunication devices (21, 22, 23), wherein the service capability information indicates at least part of the available service capabilities - within the groups of service capabilities - to the telecommunication devices (21, 22, 23) of the plurality of telecommunication devices (21, 22, 23), characterized in that subsequent to the service capability information, being sent in a first situation of the mobile communication network, a further service capability information is sent from the mobile communication network to at least part of the telecommunication devices (21, 22, 23) of the plurality of telecommunication devices (21, 22, 23), wherein the further service capability information - compared to the service capability information - -- either indicates different available service capabilities within the groups of service capabilities, especially reflecting the situation - especially the network load - of the mobile communication network at the time of the further service capability information, -- or indicates a different charging information related to different available service capabilities within the groups of service capabilities, especially reflecting the situation - especially the network load - of the mobile communication network at the time of the further service capability information. -- the mobile communication network providing a varying degree of mobility functionality, -- the mobile communication network providing different quality of service levels, -- the mobile communication network providing different levels of security measures, -- the mobile communication network providing a varying degree of identity handling, -- the establishment of the connection or -- the initiation of the exchange of data -- either indicates different available service capabilities within the groups of service capabilities, especially reflecting the situation - especially the network load - of the mobile communication network at the time of the further service capability information, -- or indicates a different charging information related to different available service capabilities within the groups of service capabilities, especially reflecting the situation - especially the network load - of the mobile communication network at the time of the further service capability information.