| Telecommunication
services |
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| Basic
telecommunication services |
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| Bearer
services provide the
capability of transmitting |
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| signals between
network access points. Higher-level |
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| functionality
of user terminals is not specified. |
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| Teleservices
provide the full communication capability |
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| by means of
network functions, terminals, dedicated |
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| network elements, etc. |
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| Supplementary
services |
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| A supplementary
service modifies or supplements a |
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| basic
telecommunication service. It cannot be offered |
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| to a customer
as a stand-alone service. |
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