GSM system enables the provision of telecommunications services (Teleservices) and transmission services (Bearer Services).
The telecommunications services may be classified into:
Into the transmission services may be included in particular:
GSM services are continuously expanded and list of implemented services depends on network operator (provider). At present, these include increasing of the transmission rate up to 14.4 kbps, respectively with the changing of the encoding up to 21.4 kbps.
There are also a variety of services to increase participant comfort. For example, the immediate introduction of accounting services (Hot Billing) allows the use of prepaid cards and their subsequent service charge, and thus creates a group of anonymous users who do not pay flat monthly fees.