Types of GSM Service
Sunday, February 20th, 2011 |
Types of GSM service
The ETSI Standards define the telecommunication services in the same way as ISDN (Integrated Services Digital Network) does. Different types of services are distinguished: bearer services, tele-services and supplementary services.
Bearer services:
Bearer services are telecommunication services providing the capability of transmission of signals between access points (called user-network interfaces in ISDN). The bearer services describe what the network can offer (e.g. speech, data and fax).
Teleservices:
Teleservices are telecommunication services including terminal equipment functions, that provide communication between users according to protocols established by agreement between network operators. The teleservices are user end-to-end services (e.g. emergency call and short message service).
Supplementary services:
Supplementary Services modify or supplement a basic telecommunication service. Consequently, they cannot be offered to a customer as a stand-alone service. They must be offered together or in association with a basic telecommunication service. The same supplementary service may be applicable to a number of telecommunication services. Most supplementary services are directly inherited from a fixed network, with minor modifications (when needed) to
adapt to mobility. Examples of supplementary services are calling line identification and call waiting.
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Types of services
Bearer services
Teleservices
Supplementary services
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The ETSI Standards define the telecommunication services in the same way as ISDN (Integrated Services Digital Network) does. Different types of services are distinguished: bearer services, tele-services and supplementary services.
Bearer services are telecommunication services providing the capability of transmission of signals between access points (called user-network interfaces in ISDN). The bearer services describe what the network can offer (e.g. speech, data and fax). Teleservices are telecommunication services including terminal equipment functions, that provide communication between users according to protocols established by agreement between network operators. The teleservices are user end-to-end services (e.g. emergency call and short message service).
Supplementary Services modify or supplement a basic telecommunication service. Consequently, they cannot be offered to a customer as a stand-alone service. They must be offered together or in association with a basic telecommunication service. The same supplementary service may be applicable to a number of telecommunication services. Most supplementary services are directly inherited from a fixed network, with minor modifications (when needed) to adapt to mobility. Examples of supplementary services are calling line identification and call waiting. |
