Patent ID: 8755368

Claim:
A method for providing a service between a service unit and terminal devices of a user via at least two communication networks, comprising: providing a synchronization unit that enables the user to access the service via each one of a plurality of communication networks subscribed to by the user without needing to register for the service again after an initial registration; receiving an information in the synchronization unit, the information being from the service unit and the information regarding a registration of the user for the service by a terminal device via a communication network; evaluating by the synchronization unit the service provided by the service unit with respect to at least one technical requirement for a use of the service by at least one terminal device via at least one further communication network; establishing by the synchronization unit at least one rule for exchanging data of the service in accordance with the evaluation result; storing by the synchronization unit the evaluation result; forwarding by the synchronization unit a further information regarding the registration for the service to at least one network unit of the at least one further communication network, with which at least one further communication network the user of the terminal devices is registered; and upon inquiry by the at least one terminal device for provision of the service through the service unit exchanging the data via the synchronization unit in accordance with the at least one established rule that depends on the technical requirements of the inquiring at least one terminal device.