the invention relates to a method for defining parameters that are to be used for transmitting data between a first user and at least one second user , or for selecting protocol options or functions , which permits an efficient , flexible and adaptable selection of codec modes . according to said method , each user has a number of votes that can be cast for the selection of parameters , whereby a decision device determines which parameters are to be used by the users for transmitting data , according to a predetermined election method , taking into consideration the number of votes .