Disclosed is a method for interfacing in a communication system. The method includes receiving an event, which should be processed using information managed by a second system providing a second service, from a first system providing a first service; and performing an interface so that the second system performs an operation corresponding to the event by using the information.
For example, an application server (200) being part of an ISP or Content Provider system or network (100) requiring device capability information in order to tailor a given service to the user of a given device (170) requesting it may request said information from a device capabilities server (166) being part of a mobile communication system or network (160) by interrogating a Universal Service Interface server (164) implementing an interfacing function between both systems or networks.
Optionally, the interrogating system or network may be billed (169) for the provision of the requested information by the system or network providing it.