Mobile Satellite Services (MSS) provide communication capabilities via satellites to mobile users, enabling voice, data, and video transmission. These services are essential for areas where traditional terrestrial networks are unavailable or unreliable, such as remote locations or during natural disasters. MSS is commonly used in maritime, aviation, and emergency response sectors. MSS operates through a network of satellites in geostationary or low Earth orbit, allowing users to connect through portable devices like satellite phones and terminals. Companies like Iridium and Inmarsat are key players in this industry, offering various plans and services tailored to different user needs.