Abstract: Restriction of a message service is carried out in a communication network, wherein at least a sender (12, 13, 14) and a recipient (12, 13, 14) can be identified by a respective address (A12, A13, A14) and wherein a record (28) is kept containing information about certain addresses with which a message communication is not allowed; a request for a message communication is analyzed (S31, S27, S32) on the basis of the information in the record to determine such is allowed; and the transmission of a message is prevented (S29) if the message is related to an address which is not allowed according to the analyzing step.

Abstract: A method and device route a message from an origin (1, 1A, 1B) to a destination (5) adapted to have a subscription to plural networks (GPRS-NW, GSM-NW), wherein the device carries out the method, comprising the steps of: determining (S21) whether the destination (5) has a multiple network subscription; selecting (S24) a route for the message through the multiple networks (GSM-NW, GPRS-NW) if the destination (5) has a multiple network subscription; and transferring (S25) the message from the origin to the destination via the selected route, wherein the selected route is selected dependent on a value of a route indicator (ROUT_IND).