AN ACCESS SYSTEM AND METHOD FOR DEVICE CONTROL

摘要

An access system (13) for device control, the system comprising a communications device (11), a registration server (12), a session control element (20) and application control element (22) contained within an access server and a subject device (14a, 14b, 14c), the communication device arranged to provide a registration signal (16) recognisable by the registration server as to identity and to establish a handshake control interaction, the registration server arranged to establish a register communication path (19) to the access server, the access server having an access indicator to at least one subject device, the access server arranged to analyse the handshake control interaction to determine whether the access indicator is present in the handshake control interaction, the access server arranged to establish a session control path to an application link (21) for the subject device, the application link establishing a device control protocol with the subject device, the system arranged whereby the registration signal and/or the handshake control interaction and/or register communication path and/or the session control path and/or the device control protocol used consistent or respectively different signal language regimes, but the handshake control interaction provides at least one control function for the subject device in terms of an allocated function control signal within the handshake control interaction.