A communication method and a communication system for tailored mobile communication

The present document discloses a solution for sending tailored calling party data from a mobile client device in connection with a voice call (29). A method comprises: initiating, by a calling mobile client, the voice call; sending a pre-call message from the calling mobile client to a library server, the pre-call message concerning identification information of a called mobile client whereto the calling mobile client is starting to establish a voice call; informing, by the library server, the called mobile client of a forthcoming call from the calling mobile client; checking from the called mobile client if it accepts to receive tailored calling party data of the calling mobile client and, if allowed, sending, by the library server, the tailored calling party data of the calling mobile client to the called mobile client and sending to the calling mobile client an OK message depicting that the tailored calling party data of the calling mobile client is sent to the called mobile client; sending a voice call initiation message from the calling mobile client to the called mobile client; connecting the voice call from the calling mobile client to the called mobile client; and presenting, during alerting the incoming voice call on a display of the called mobile client, tailored pre-call calling party data that is at least a part of the tailored calling party data.