1、 TGC 02-08 Page 1 E Recommendation T/GSI 02-08 (by correspondence, June 1987) SUPPLEMENTARY SERVICES ASSOCIATED WITH TELESERVICES Recommendation proposed by the Special Group Integration (GSI) Text of the Recoinmeiidation adopted by the “Telecommunicatioiis” Coinmission : “The European Conference of
2、 Posts and Telecommunications Administrations, coiisideriiig - the common CEPT approach to the ISDN and general CEPT assumptions and policies for the evolution towards - the I. Series Recommendations of the CCITT, as well as other CCITT Recommendations on ISDN, to which - the need for CEPT Administr
3、ations to have more precise answers to their specific European requirements, Le. - the need for CEPT Administrations to have as a base a comprehensive set of Recommendations, in order to ISDN, CEPT Administrations have contributed most significantly, to select and further define material from CCITT
4、Recommendations, promote and strengthen European harmonisation, recoinmetids - to the members of the CEPT that they evolve their telecommunication networks towards ISDN according to the specifications given in the attached text.” Edition of October 31, 1987 CEPT T/GSI*02-08 E 87 E 2326414 0005434 2
5、W T/GSI 02-08 E Page 2 1. GENERAL ASPECTS Supplementary Services are used to modify or enhance a basic Bearer Service or a Teleservice to the users needs. They can only be offered as an addition to the basic services. The capabilities to support supplementary services can be implemented in the netwo
6、rk nodes, in specialised service centers or in terminals, The operation of supplementary services should always be consistent with basic services and other supple- mentary services characteristics. The definition and description of individual supplementary services is given in Recommendation The des
7、cription method of supplementary services is given in Recommendation T/GSI 01-07 2. General Service aspects are described in Recommendation T/GSI 02-01 3. The definition of teleservices is given in Recommendation T/GSI 02-03 4. The definition of attributes and possible attribute values is given in R
8、ecommendation T/GSI 01-03 5. T/GSI 02-06 i. 2. SUPPLEMENTARY SERVICES TO TELESERVICES MATRIX For those supplementary services which will be offered during phase 1 and phase 2 of the ISDN implementa- tion, the association with the individual teleservices is contained in Annex 1. A provisional associa
9、tion of other supplementary services with the individual teleservices is shown in Appendix 1. This appendix needs to be completed when the supplementary services are described. Note 1. The following symbols have been used in Annex 1 and Appendix 1. Where more than one variant of a supplementary serv
10、ice exists the supplementary service family name has been used and allocated a priority of introduction. E: Indicates that the supplementary service is essential, has a high priority for introduction and should be made available internationally. A: Indicates that the supplementary service is identif
11、ied as additional, has a lower priority for introduction and may be available in some ISDNs. It may also be available internationally. T: Supplementary services in principle may be located in either the network or in the terminal or a combination of both. The T indicates that a terminal solution is
12、considered to have a high priority (e.g. for the supplementary service Abbreviated Address and Repeat Last Call). Note 2. The sequence of supplementary services listed in the Annex 1 reflects the sequence of introduction as proposed by the Commission of the European Communities and adopted by the Co
13、nference of Posts and Telecommunications Adminis- trations. REFERENCES i T/GSI 02-06. Supplewientary service dejnition. 2 T/GSI 01-07. Method for the characterization of Telecoitirnimication services supported by an ISDN and network capabilities of an ISDN. 3 T/GSI 02-01. Service dejnition. 4 T/GSI
14、02-03. Teleservices. 5 T/GSI 01-03. Vcnbhry. Edition of October 31, 1987 CEPT T/GSI*02-08 E 87 2326434 0005435 4 T/GSI 02-08 E Annex 1, page 3 Annex 1 Matrix with the Relevance and Priority of supplementary Services to Teleservices W =! z 8 2 - E EIE Advice of charge (2) Call waiting (1) E EIE IE EI
15、E Calling line identification presentation (1) E EIE + + E E - EE Calling line identification restriction (1) Closed user group (1) (4) Completion of calls to busy subscribers (2) E I Conference call (2) EI + E E ,i Direct dialling in (1) Diversion services (2) Freefone service (2) E E Malicious cal
16、l ident (2) E + E E - Number identification, called user (2) Sub-addressing (1) (4) Terminal portability (1) (4) EI + Terminal selection (1) (4) E EIE Three party service (2) - E User to user signalling (1) (3) (4) Note 1. Supplementary Services to be made available in the first phase of ISDN implem
17、entation (from 1988). Note 2. Supplementary Services to be made available in the second phase of ISDN implementation (1988-1993). Note 3. Initially this supplementary service may only be provided in call control messages (service 1, compare Recommendation T/GSI 02-06 i). Note 4. The implementation o
18、f these supplementary services may be foreseen in a later stage in some countries. Edition of October 31, 1987 CEPT T/GSI*OZ-O E 7 2326434 0005436 6 M T/GSI 02-08 E Appendix 1, page 4 Appendix 1 Provisional Matrix with the Relevance of Supplementary Services to Teleservices w u 3 $ 8 2 O a - w d # d
19、 - E G w e - I Abbreviated address I Alarm call service I Alarm (warning) service Booked call Call barring service I Call hold (1) Cent distribution of recorded private info Cent PBX facilities (City-Wide Centrex) I Change of service during an established call I Code/speed conversion Credit card cal
20、ling Date and time call record Directory enquiries AUT MAN I Editing I Expediting of a call in progress I Fault reporting service Fixed destination call Edition of October 31, 1987 Appendix 1 (continued) General telecoms info Interception of calls General deactivation IA A Logging of I/C calls Natio
21、nal select and ind of throughput class I Lecture call A Line hunting IE _ Packet delivery conrm Payphone service _ A Op access to and control of supplementary servs I A Priority selection Repeat last call I Out of area lines T Transfer of charge Universal access no I Permanent sub-number E E Prior i
22、t y IE Sequence calling IA I User selection of pad parameter settings I Wide area service TIGSI 02-08 E Appendix 1, page 5 Note 1. Further study is required on whether “call hold” is a supplementary service or only a functional component to support other supplementary services, e.g. Call Waiting, Three Party Service. Edition of October 31, 1987
