Method and system for transmitting supplementary data, and communication terminal

A system for transmitting supplementary data to a communication terminal, comprising:

• a communication session, wherein the communication terminal is a subscriber of the communication session;
• a message generation device that generates a message containing the supplementary data whose content relates to the communication session that has been set up or terminated and an identification for the communication session;
• a transmission device transmitting the message to the communication terminal, wherein the supplementary data cannot be transmitted in the course of the communication session, and wherein the communication session is configured such that the communication terminal cannot receive the data in the course of the communication session;
• and
• a decision making unit that decides, based at least in part on the volume of data in the supplementary data, whether the supplementary data is transmitted to the communication terminal using the same transmission path used to transmit data to the communication terminal in the course of the communication session, or whether the supplementary data is to be transmitted to the communication terminal using another transmission path.

A method for transmitting supplementary data to a mobile radio subscriber terminal, comprising:

• providing a communication session, wherein the mobile radio subscriber terminal is a subscriber of the communication session;
• generating a message containing supplementary data whose content relates to the communication session that has been set up or terminated and an identification for the communication session;
• transmitting the message to the mobile radio subscriber terminal using a mobile radio communication network, wherein the supplementary data cannot be transmitted in the course of the communication session, and wherein the communication session is configured such that the mobile radio subscriber terminal cannot receive the data in the course of the communication session;
• and
• deciding, based at least in part on the volume of data in the supplementary data, whether the supplementary data is to be transmitted to the mobile radio subscriber terminal using the same transmission path used to transmit data transmitted to the mobile radio subscriber terminal in the course of the communication session, or whether the supplementary data is to be transmitted to the mobile radio subscriber terminal using another transmission path.

A method for transmitting supplementary data to a communication terminal, comprising:

• a communication session, wherein the communication terminal is a subscriber of the communication session;
• deciding, based at least in part on the volume of data in the supplementary data, whether supplementary data whose content relates to a communication session that has been set up or terminated are to be transmitted to the communication terminal using the same transmission path used to transmit data transmitted to the communication terminal in the course of the communication session, or whether the supplementary data is to be transmitted to the communication terminal using another transmission path;
• generating a message which contains the supplementary data and an identification for the communication session on the basis of the decision;
• and
• transmitting the message to the communication terminal on the transmission path or the another transmission path on the basis of the decision.