Wireless Communication Protocols: GSM, H.323, PBX, PCM, WAN, LAN, Routers
GSM or GLOBAL SYSTEM FOR MOBILE COMMUNICATIONS is a digital cellphone technology that is based on TDMA (Time Division Multiple Access) and is predominantly used in European countries and it is also used in other countries of the world including India. GSM was developed in the 1980s and was distributed to be used in around 7 European countries in 1992. Nowadays, GSM is used in Asia, Europe, Australia, North America, and Chile. GSM operates on 1.9GHz PCS bands in USA and 900MHz and 1.8GHz bands in Europe. Global System for Mobile Communications defines the entire mobile system and is not just used as a radio interface but also TDMA and CDMA which is Code Division Multiple Access. In the year 2000, world had more than 250 million GSM users which represents more than half of world’s population of cellphone users. GSM use is increasing day by day due to its reliability and easy connectivity services. WAV and AIFF files are used for audio coding of the GSM standard used in IP telephony.
GSM or GLOBAL SYSTEM FOR MOBILE COMMUNICATIONS is a digital cellphone technology that is based on TDMA (Time Division Multiple Access) and is predominantly used in European countries and it is also used in other countries of the world including India. GSM was developed in the 1980s and was distributed to be used in around 7 European countries in 1992. Nowadays, GSM is used in Asia, Europe, Australia, North America, and Chile. GSM operates on 1.9GHz PCS bands in USA and 900MHz and 1.8GHz bands in Europe. Global System for Mobile Communications defines the entire mobile system and is not just used as a radio interface but also TDMA and CDMA which is Code Division Multiple Access. In the year 2000, world had more than 250 million GSM users which represents more than half of world’s population of cellphone users. GSM use is increasing day by day due to its reliability and easy connectivity services. WAV and AIFF files are used for audio coding of the GSM standard used in IP telephony.
No comments:
Post a Comment