Cellular Radio is the use of applied science using low supply radio transmission for transmission and receiving voice or information to a telephone network. Users stub be stationary or mobile. It means users are no longer constrained to calculate to place as it is a wireless system. 2. What is ISDN (Integrated Services Digital Network)? ISDN is a system which provides digital capacity i.e. voice, video and selective information transmission in digital form, to be sent and rec...If you desire to get a full essay, order it on our website: OrderEssay.net
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