Can Samsung only use other devices to talk and send text messages on tablets and mobile phones?

Samsung can only talk and send text messages on tablets and other devices on mobile phones. According to official website of Samsung Group, Samsung wants to use the function of "making calls and sending and receiving short messages on other devices", and both tablet computers and mobile phones need to support this function, and it seems that there are geographical and operator restrictions. Both tablet computers and mobile phones need to be the same version, so Samsung can only make calls and send short messages on other devices.