A method for managing lists for repelling unwanted speech advertising (SPIT) in a packet-oriented network, - in which, in a packet-oriented network for end devices of the network, a service for managing lists is provided, said service providing a first and a second list (LI, L2) of identifiers (id, rn) in which unwanted speech advertising (SPIT) is or is not to be expected, - in which a call is directed to the service and the identifier (idx) of the call is compared with the identifiers (id, rn) in the lists (LI, L2), - in which, at the end device (EGx), the call is transmitted following acceptance, and - in which, after a call is determined to be with or without unwanted speech advertising (SPIT), a first or second piece of information (z1, z2) input at the end device (EGx) is transmitted to the service in the packet-oriented network, and the identifier (idx) of the call is assigned to the first or second list (LI, L2), characterized in that - if the identifier (idx) of a call is not contained in the first or second list (LI, L2), the call is directed to the addressed end device (EGx), - and if a call cannot be evaluated with respect to speech advertising (SPIT), a third piece of information input at the end device (EGx) is transmitted to the service in the packet-oriented network, and the transmitted identifier (idx) of the call is assigned to a third list, - and if the identifier (idx) is contained in the third list, when the call is directed to the addressed end device (EGx) a piece of information is transmitted with it, indicating to the end device (EGx) that no evaluation with respect to speech advertising (SPIT) is possible for that identifier (idx). - in which, in a packet-oriented network for end devices of the network, a service for managing lists is provided, said service providing a first and a second list (LI, L2) of identifiers (id, rn) in which unwanted speech advertising (SPIT) is or is not to be expected, - in which a call is directed to the service and the identifier (idx) of the call is compared with the identifiers (id, rn) in the lists (LI, L2), - in which, at the end device (EGx), the call is transmitted following acceptance, and - in which, after a call is determined to be with or without unwanted speech advertising (SPIT), a first or second piece of information (z1, z2) input at the end device (EGx) is transmitted to the service in the packet-oriented network, and the identifier (idx) of the call is assigned to the first or second list (LI, L2), characterized in that - if the identifier (idx) of a call is not contained in the first or second list (LI, L2), the call is directed to the addressed end device (EGx), - and if a call cannot be evaluated with respect to speech advertising (SPIT), a third piece of information input at the end device (EGx) is transmitted to the service in the packet-oriented network, and the transmitted identifier (idx) of the call is assigned to a third list, - and if the identifier (idx) is contained in the third list, when the call is directed to the addressed end device (EGx) a piece of information is transmitted with it, indicating to the end device (EGx) that no evaluation with respect to speech advertising (SPIT) is possible for that identifier (idx).