A.3 Interworking attribute

22.0013GPPPrinciples of circuit telecommunication services supported by a Public Land Mobile Network (PLMN)Release 17TS

A.3.1 Type of terminating network

Communication can be established between a UE in a PLMN (originating network) and a terminal in a network (terminating network) including the same PLMN or another PLMN. The attribute designates the terminating network.

NOTE 1: The terms "originating" and "terminating" do not indicate the direction of communication establishment.

NOTE 2: This attribute does not reflect whether there is none, one or several transit networks between the originating and terminating networks.

Values:

– PSTN;

– ISDN;

– PSPDN;

– PDN;

– PLMN;

– direct access networks.

A.3.2 Terminal to terminating network interface

This attribute describes the interface between a terminal equipment and the terminating network.

Values:

– appropriate V-series (DTE/DCE) interface;

– appropriate X-series interface;

– analogue 2 resp. 4 wire interface;

– S interface (D+B+B).