The present invention refers to a System for transmitting of messaging data representing information defined by end users and sent from a first end user device (1) to a further end user device (2). The system according to the invention at least comprises: the first end user device (1) and one further end user device (2), wherein the end user devices (1), (2) are having internet and GSM/CDMA-based connectivity capabilities, wherein at least the first end-user device (1) is equipped with an application providing a user-interface (14) for enabling a user to define the information represented by the messaging data, wherein the application reads out connectivity properties of the first end user device (1) from a control means or communication means of the first end user device (1), wherein message data is directed in dependency of the read out data via an internet connection path or via a GSM/CDMA-based connection path, wherein the messaging data is automatically modified in a predefined manner in case the GSM/CDMA-based connection path is selected and in case the messaging data fulfills a predefined criterion.