INTRODUCTION TO MOBILE TELECOMMUNICATIONSAND GSM1. The GSM frequency bands are:a) GSM at 800 and 1800 MHzb) GSM at 800, 900, 1800 and 1900 Mhzc) GSM at 900, 1800 and 1900 MHz2. MOU stands for:a) Mobile Operating Unitb) MObile Union (of GSM)c) Memorandum Of Understanding3. Only one of the following statements is true, which one?GMSC functionality is invoked fora) all mobile terminated callsb) all voice calls from mobile stationsc) only those subscribers who have moved
