ESTABLISHING A MULTIMEDIA COMMUNICATIONS SESSION

摘要

The invention relates to a method of enabling user equipment to establish a communication session over an IMS network. The communication session is enabled by one or more call/session control functions in the network in accordance with media characteristics that define the network resources to be utilised for the session. The method comprises: receiving within the IMS network a subscriber registration request originating from the user equipment and, in response thereto, sending to the user equipment an identification of allowable media characteristics.