It makes use of the mobile phone with the analog signal more difficult and this signal are suffer from interference problem . Limited capacity . Poor hand-off reliability . Very slow speed .
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Advantages of 2G over 1G It allows voice signals to be digitized and compressed . So, they are more efficient on frequency spectrum than 1G. They introduced data services for mobile in form of SMS text messaging. Data and voice signals are digitally encrypted.28 Eyl 2018
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