VOYCE-M1 (Voice-Oriented Yielding and Communication Experiment – Mars Mission 1) is an interplanetary technology demonstration satellite intended to validate autonomous, voice-based communication from Mars-distance environments under realistic deep-space constraints. The mission is centered on the concept of “voice as data,” treating human speech not merely as an audio signal but as a structured, time-delayed communication artifact that can be processed, prioritized, and transmitted autonomously across interplanetary distances. Operating at Earth–Mars ranges, VOYCE-M1 addresses key challenges including extreme signal latency, limited bandwidth, intermittent ground contact, and strict power availability. The spacecraft incorporates an AI-enabled communication system that performs onboard voice encoding, compression, noise filtering, and content management prior to store-and-forward transmission to Earth. This architecture allows voice messages to be generated, curated, and transmitted without continuous ground control, reflecting future human–robot interaction scenarios around Mars. The transmitted voice content may include predefined human messages, autonomous system-generated narration, or mission-status audio summaries, demonstrating both cultural and operational use cases of voice in deep space. In addition to voice transmission, VOYCE-M1 supports context imaging and symbolic messaging experiments to enhance mission validation and outreach. The mission is designed for operational resilience, enabling meaningful voice and data demonstrations during interplanetary cruise and Mars-proximal operations. VOYCE-M1 serves as a precursor to future Mars communication infrastructure, offering critical insights into AI-assisted autonomy, low-power interplanetary communications, and the role of human-centric voice interaction in sustained planetary exploration. This paper outlines mission and operational planning, technical overview, mass budget, payload systems, and satellite infrastructure.