What is MS (Mobile Station) ?

The MS (Mobile Station) consists of the physical equipment used by the subscriber to access a telecommunication services. Various types of MS, such as the vehicle mounted station, portable station, or handheld station are used. The mobile station (MS) consists of the mobile equipment (the terminal) and a smart card called the Subscriber Identity Module (SIM). The SIM provides personal mobility, so that the user can have access to subscribed services irrespective of a specific terminal. By inserting the SIM card into another GSM terminal (mobile phone), the user is able to receive calls at that terminal, make calls from that terminal, and receive other subscribed services.