Abstract: A payment terminal using a mobile communication device (4), such as a mobile phone, is located on a removable memory card (1), e.g. type microSD card, which is adjusted in such a way so it can be inserted into an additional hardware slot, e.g. memory slot. A payment POS terminal application runs on a removable memory card (1), which contains at least one payment card. The payment card's unit (7) with the card's payment application is located in the secured part of the memory, separately from the terminal's configuration data unit (6). The configuration data of the terminal's selected identity and the payment card's data are located in the separate parts of the secure element or in completely independent secure elements or they can also be localized in the Sales Device of the merchant and there e.g. within the ICC card (29) or SAM card (42).

Abstract: A payment terminal using a mobile communication device, such as a mobile phone, is located on a removable memory card (1) which is adjusted in such a way so it can be inserted into an additional hardware slot which is used to add functionalities that surpasses the basic functions of the mobile communication device. (4). A payment POS terminal application runs on a removable memory card (1), which also contains at least one payment card. The configuration data of the terminal's selected identity and the payment card's data are located in the separate parts of the secure element (3, 31, 32) or in completely independent secure elements (3, 31, 32). The payment card's unit (7) with the card's payment application is located in the secured part of the memory, separately from the terminal's configuration data unit (6). The memory card (1) is of SD type or miniSD or microSD card or an M2 card.