WPCL 2BJ|x  H   x|@  6'6' Recommendation I.200 Guidance to the I.200Series of Recommendations 1.HGeneral HThe Recommendations in the I.200Series cover the aspects of the telecommunications services supported by ISDNs. They contain the definitions, descriptions and provision of bearer services, teleservices and their associated supplementary services.   HIn the layout of the I.200Series of Recommendations the following objectives have been taken into account: H to achieve a systematic structure which is open to future enhancement; H to facilitate the requirements of different readers by separating, in specific Recommendations, general service concepts and definitions from Recommendations covering detailed characteristics of individual services; H to use systematically the service description method given in RecommendationI.130 where, for stage 1, telecommunication services are described in three steps: H1)h  prose definition and description; H2)h  static description using attributes; H3)h  dynamic description using graphic means. 2.HStructure of the I.200Series of Recommendations HTable 1/I.200 shows the layout and Figure 1/I.200 illustrates the structure of the I.200Series of Recommendations. HThe general service concepts and principles are given in RecommendationI.210. Annexes to Recommendation I.210 describe the application of the service description method to the three service families: bearer services, teleservices and supplementary services. HA separate section of the I.200Series is allocated to each service family. Within each of these sections the first Recommendation gives an overview of the services within each family and the subsequent Recommendations specify in detail individual services. The reader interested in an overview of service concepts and principles, as well as the methodology to describe services, will find them in RecommendationsI.210, I.230, I.240 and I.250. HThe reader interested in the detailed characteristics of individual services will find them in Recommendations I.231, I.232, I.241 and I.251I.257. Detailed items of common significance are defined and described in the I.220Series of Recommendations.  h Note In the CCITT Red Book (1984) all ISDN service requirements were contained in three Recommendations numbered I.210, I.211 and I.212. References have been made widely to these 1984 Recommendations in other Recommendations and elsewhere, and to facilitate a translation to the new 1988 version of the I.200Recommendations Appendix A shows the mapping between the 1984 and 1988 I.200Series of Recommendations. 8LTABLE 1/I.100 8<Layout of the I.200Series of Recommendationsă I.200 Guidance to the I.200Series of Recommendations Section 1 General aspects of services in an ISDN I.210 Principles of telecommunication services supported by an ISDN and the means to describe them Section 2 Common aspects of services in an ISDN I.220 Common dynamic description of basic telecommunication services I.221 Common specific characteristics of services Section 3 Bearer services supported by an ISDN I.230 Definition of bearer services categories I.231 Circuit mode bearer services categories I.232 Packet mode bearer services categories Section 4 Teleservices supported by an ISDN I.240 Definition of teleservices I.241 Teleservices supported by an ISDN Section 5 Supplementary services in an ISDN I.250 Definition of supplementary services I.251 Number identification supplementary services I.252 Call offering supplementary services I.253 Call completion supplementary services I.254 Multiparty supplementary services I.255 "Community of Interest" supplementary services I.256 Charging supplementary services I.257 Additional information transfer supplementary services 8R 8R 8R 8MAppendix A 8R 8F(to Recommendation I.200) 8R 82Mapping between the 1984 and 1988 I.200Series of Recommendationsă 1984 RecommendationsĠ1988 Recommendations HH Rec. I.210   16 Rec. I.210 16 Rec. I.211   1 Rec. I.210Annex B H 2 I.230 2 H 2.1H''(2.1 H 2.1.1H'I.231A H 2.1.2H'B H 2.1.3H'C H 2.1.4H'D H 2.1.5H'Deleted H 2.1.6H'I.231F H 2.1.7H'G H 2.1.8H'H ,ԌH .2.2H''(I.2302.2 H 2.2.1H'I.232A H 2.2.2H'B 3I.230 3 3.1.1I.231A7.2 3.1.2B7.2 3.1.3C7.2 3.1.4D7.2 3.1.5Deleted 3.1.6I.231F7.2 3.1.7G 7.2 3.1.8H 7.2 3.2.1I.2321.4 3.2.22.4 Rec. I.212   1I.210Annex C1 2 2 Recoup FIGURE 1/I.200