Abstract: A method for providing multimedia content as multicast packets in a mobile communications network. A client device and a multimedia server capable of performing said method. The multimedia server determines a current demand value for the multimedia content, the value being the number of clients which are being provided with said multimedia content and the number of clients from which the request has been received but which are not yet being provided with said multimedia content. If the determined current demand value of said multimedia content is below said pre-defined threshold, the multimedia server provides said multitude of clients with said multimedia content using a tunnel which is set up to each one of the clients using a tunnel protocol. The multimedia content is sent as multicast packets which are encapsulated by using said tunnel protocol.

Abstract: Method for distributing multimedia public warning alerts in a mobile telecommunications network, including: creating an alert message by an emergency authority computer in the network, the message including a textual message and a multimedia object; sending by a content distributor server parameters for a content delivery session; sending by the computer the created message to the server; sending by the computer a request for a cell broadcast message to a cell broadcast center in the network, the message including the textual message and content delivery session parameters; broadcasting by the cell broadcast center the message through a radio access network; receiving by mobile user equipment in the network the message through the radio access network; setting up by the multicast content distributor server a transparent IP multicast session between the server and at least some of the user equipment; sending the multimedia object though the session to the user equipment.

Abstract: Method for distributing multimedia public warning alerts in a mobile telecommunications network, including: creating an alert message by an emergency authority computer in the network, the message including a textual message and a multimedia object; sending by a content distributor server parameters for a content delivery session; sending by the computer the created message to the server; sending by the computer a request for a cell broadcast message to a cell broadcast center in the network, the message including the textual message and content delivery session parameters; broadcasting by the cell broadcast center the message through a radio access network; receiving by mobile user equipment in the network the message through the radio access network; setting up by the multicast content distributor server a transparent IP multicast session between the server and at least some of the user equipment; sending the multimedia object though the session to the user equipment.