The inventive method and system enable an increase in the amount of information that may be transmitted from a call-initiating first telecommunication terminal to an automated application or device or machine or the like in conjunction with the call request. The content of the A-number field to be transmitted from a conversion/transmission center to a destination second telecommunication terminal is modified by adding control information to the A-number field. This control information is used to control an actuating device that is connected to the second telecommunication terminal and which operates or forms a part of the automated application or device or machine.