1. An electronic device comprising: a housing; a display disposed on a surface on the housing; an audio input interface comprising audio input circuitry disposed in the housing; an audio output interface comprising audio output circuitry disposed in the housing; at least one wireless communication circuit disposed in the housing and configured to select one of plural different communication protocols for call setup; a processor disposed in the housing and electrically connected with the display, the audio input interface, the audio output interface, and the at least one wireless communication circuit; and a memory electrically connected with the processor, wherein the memory stores at least one codec supporting multiple modes each respectively associated with a different frequency band and a plurality of speech recognition models being respectively associated with the different frequency band, wherein the memory stores instructions that, when executed, cause the processor to perform operations comprising: controlling setting up a call using the wireless communication circuit, selecting one of the multiple modes based on the selected communication protocol, selecting one of the plurality of speech recognition models based on a frequency band corresponding to the selected mode, receiving a voice command from the outside of the electronic device using the wireless communication circuit, and processing the voice command using the selected speech recognition model.