EP3349412

A method is described for transmitting a multimedia stream from a first terminal and receiving an associated second multimedia stream at a second terminal, wherein the first and second terminal are connected to at least one gateway for enabling the transmission of the first multimedia stream and the receiving of the second associated stream, the method comprises the steps of:-initiating the exchange of first multimedia session information between the first terminal and the gateway, using a first protocol;-providing a trigger to the second terminal to initiate the exchange of second multimedia session information between the second terminal and the gateway, using a second protocol;-in response to the providing of the trigger, the second terminal initiating the exchange of second multimedia session information between the second terminal and the gateway, using a third protocol, the third protocol being different from the second protocol;-transmitting a first multimedia stream from the first terminal and receiving a second associated multimedia stream at the second terminal.