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- Recommendation I.200 - Guidance to the I.200-Series of Recommendations
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- 1. General
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- The Recommendations in the I.200-Series 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.
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- In the layout of the I.200-Series of Recommendations the following objectives have been taken into account:
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- - to achieve a systematic structure which is open to future enhancement;
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- - to facilitate the requirements of different readers by separating, in specific Recommendations, general
- service concepts and definitions from Recommendations covering detailed characteristics of individual ser-
- vices;
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- - to use systematically the service description method given in RecommendationI.130 where, for stage
- 1, telecommunication services are described in three steps:
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- 1) prose definition and description;
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- 2) static description using attributes;
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- 3) dynamic description using graphic means.
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- 2. Structure of the I.200-Series of Recommendations
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- Table 1/I.200 shows the layout and Figure 1/I.200 illustrates the structure of the I.200-Series of Recom-
- mendations.
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- The 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.
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- A separate section of the I.200-Series 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.
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- The reader interested in the detailed characteristics of individual services will find them in Recommendations
- I.231, I.232, I.241 and I.251-I.257. Detailed items of common significance are defined and described in the I.220-
- Series of Recommendations.
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- 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 map-
- ping between the 1984 and 1988 I.200-Series of Recommendations.
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- TABLE 1/I.100
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- Layout of the I.200-Series of Recommendations
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- I.200 - Guidance to the I.200-Series of Recommendations
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- Section 1 - General aspects of services in an ISDN
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- I.210 - Principles of telecommunication services supported by an ISDN and the
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- means to describe them
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- Section 2 - Common aspects of services in an ISDN
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- I.220 - Common dynamic description of basic telecommunication services
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- I.221 - Common specific characteristics of services
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- Section 3 - Bearer services supported by an ISDN
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- I.230 - Definition of bearer services categories
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- I.231 - Circuit mode bearer services categories
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- I.232 - Packet mode bearer services categories
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- Section 4 - Teleservices supported by an ISDN
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- I.240 - Definition of teleservices
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- I.241 - Teleservices supported by an ISDN
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- Section 5 - Supplementary services in an ISDN
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- I.250 - Definition of supplementary services
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- I.251 - Number identification supplementary services
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- I.252 - Call offering supplementary services
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- I.253 - Call completion supplementary services
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- I.254 - Multi-party supplementary services
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- I.255 - "Community of Interest" supplementary services
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- I.256 - Charging supplementary services
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- I.257 - Additional information transfer supplementary services
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- Appendix A
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- (to Recommendation I.200)
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- Mapping between the 1984 and 1988 I.200-Series of Recommendations
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- 1984 Recommendations1988 Recommendations
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- Rec. I.210 _ 1-6 Rec. I.210_ 1-6
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- Rec. I.211 _ 1 Rec. I.210Annex B
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- 2 I.230_ 2
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- 2.1 2.1
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- 2.1.1 I.231A
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- 2.1.2 B
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- 2.1.3 C
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- 2.1.4 D
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- 2.1.5 Deleted
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- 2.1.6 I.231F
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- 2.1.7 G
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- 2.1.8 H
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- .2.2 I.230_2.2
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- 2.2.1 I.232A
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- 2.2.2 B
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- 3I.230_ 3
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- 3.1.1I.231A_7.2
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- 3.1.2B_7.2
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- 3.1.3C_7.2
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- 3.1.4D_7.2
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- 3.1.5Deleted
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- 3.1.6I.231F_7.2
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- 3.1.7G _7.2
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- 3.1.8H _7.2
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- 3.2.1I.232_1.4
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- 3.2.2_2.4
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- Rec. I.212 _ 1I.210Annex C_1
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- 2_ 2
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- Recoup FIGURE 1/I.200
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