A method for supporting execution of a plurality of applications over a clientless mobile phone is disclosed. The method comprises displaying over a display of the mobile phone a menu of at least one application of a plurality of applications executed by a clientless mobile interaction (CMI) server, wherein the CMI server communicates the menu of the plurality of applications to the mobile phone using a USSD protocol; receiving an input responsive of a selection of one application of the at least one application displayed in the menu; communicating the selected application to the CMI server using the USSD protocol; receiving contents of the selected application from the CMI server using the USSD protocol; and displaying the received contents over the display of the mobile phone.