•Short form of Global System for Mobile COMMUNICATIONS, is a wireless network system
•A STANDARD for digital cellular mobile communications
•International roaming arrangements are enabled among mobile network operators, by providing the subscribers to use their personal mobile phones anywhere in the world.
•GSM is considered as second generation mobile, as signaling and speech channels are digital
•The carriers can be replaced without replacing mobile phones.
•The ubiquity of GSM implementations is also enabling the switching between network operators, who can CHOOSE EQUIPMENT from many GSM equipment vendors.
•GSM pioneered low cost SMS implementation
•The GSM standard includes a worldwide emergency telephone number feature.

•Short form of Global System for Mobile Communications, is a wireless network system
•A standard for digital cellular mobile communications
•International roaming arrangements are enabled among mobile network operators, by providing the subscribers to use their personal mobile phones anywhere in the world.
•GSM is considered as second generation mobile, as signaling and speech channels are digital
•The carriers can be replaced without replacing mobile phones.
•The ubiquity of GSM implementations is also enabling the switching between network operators, who can choose equipment from many GSM equipment vendors.
•GSM pioneered low cost SMS implementation
•The GSM standard includes a worldwide emergency telephone number feature.