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الى أي جيل من أجيال الاتصالات تتبع هذه الأنظمة : AMPS, GSM, GPRS, UMTS, LTE, LTE-A ؟
1- Advanced Mobile Phone System (AMPS), is an analog mobile cell phone : First generation. 2- Global System for Mobile communications (GSM): is a digital standatrd mobil ... Voir Plus
GSM was released to support voice calls mainly, and the mobile data had very low demand. When the demand became higher for the mobile data and for a standard that support ... Voir Plus