Disclosed is a system. A system according to an embodiment includes: a first electronic device which includes a wireless communication circuit, a microphone, and a speaker, at least one processor which is a part of the first electronic device or remotely communicates with the electronic device; and at least one memory which resides on the first electronic device or on the outside of the first electronic device while operatively connected with the at least one processor, wherein the memory can store instructions which, when executed, cause the processor to: receive through the microphone a voice input including a request for performing a task that uses the first electronic device and is related to the transmission of data to a second external device; extract at least one parameter from the voice input; perform the task by using the wireless communication circuit; and transmit at least a portion of the at least one parameter to the second external device. Other embodiments understood through the present specification are also passible.