The invention relates to a device for establishing contact (30) for a mobile telephone (18) comprising a receivor device (32) for receiving a mobile radio signal from another mobile telephone (18), a means of decoding (34) coupled to a receivor device (32) for decoding the mobile network call number of the other mobile telephone (18) from the received mobile telephone signal, and also an SMS message generating device (36) coupled to the decoding means (34) for generating an SMS message which sends an SMS-text block to the decoded mobile network call number.
