Method, device, and system of selectively using multiple voice data receiving devices for intelligent service

An electronic device is provided, which includes a user interface, at least one communication module, a microphone, at least one speaker, at least one processor operatively connected with the user interface, the at least one communication module, the microphone, and the at least one speaker, and at least one memory operatively connected with the at least one processor, wherein the at least one memory stores instructions, which when executed, instruct the at least one processor to while the electronic device is wiredly or wirelessly connected with an access point (AP) connected with at least one external electronic device, after receiving, through the microphone, part of a wake-up utterance to invoke a voice-based intelligent assistant service, broadcast identification information about the electronic device and receive identification information broadcast from the external electronic device, after receiving the whole wake-up utterance through the microphone, individually transmit first information related to the wake-up utterance received through the microphone to the at least one external electronic device and individually receive, from the external electronic device, second information related to the wake-up utterance received by the at least one external electronic device, and determine whether to transmit voice information received after the wake-up utterance to an external server based on at least part of the first information and the second information. Other various embodiments are possible as well.