Abstract: A system and method is provided for discovering capabilities of a first device communicating with a second device using a telecommunications network. The first and second devices are registered at a service platform. The first and second devices access the service platform through first and second core networks. At the first core network, a request is received from the second device for discovering capabilities of the first device. The first core network determines a first status indicator of the first device. The request is routed from the second device to an application server. The first status indicator of the first device is identified by the application server and a second status indicator of the first device is determined. A response is sent from the application server to the second device, the response containing feature tags describing a set of services supported by the first device.