1 Framework for describing circuit teleservices supported
22.0033GPPCircuit Teleservices supported by a Public Land Mobile Network (PLMN)TS
Teleservices supported by a PLMN are described by a number of attributes which are intended to be largely independent.
These attributes are described and defined in specification 3GPP TS 22.001 [2].
They are grouped into three categories:
– High layer attributes;
– Low layer attributes (describing the Bearer capabilities which support the Teleservice).
– information transfer attributes;
– access attributes.
– General attributes.
Figure 1 shows the relationship between the different categories of services attributes, and their scope within a Teleservice.
NOTE 1: A transit network may not exist.
NOTE 2: Communication may be established from both ends in principle.
Figure 1: Relationship between the categories of services attributes and their scope
within a Teleservice