Disclosed are a capability broker, a related messaging system and methods. The capability broker is placed in new network architecture between traffic proxies and enabler servers. The capability broker is equipped with a capability interface adapted to receive a capability request pertaining to a request of at least one capability. The capability broker is adapted to use one or more messages to obtain the requested at least one capability from one or more enabler servers responsive to receiving said capability request, and to provide a response to said capability request on the basis of the obtained capability.