1、CEPT T/SF*31*E 232b414 0009180 b 0 Page E 1 Recommendation T/SF 31 (Cannes 1983, revised in Odense 1986 and Copenhagen 1987) SERVICES AND FACILITIES ASPECTS OF AN INTEGRATED SERVICES DIGITAL NETWORK (ISDN) Recommendation proposed by Working Group T/WG 7 “Services and facilities” (SF) Text of the Rec
2、ommendation adopted by “Telecommunications” Commission “The European Conference of Posts and Telecommunications Administrations, considering I. that Integrated Services Digital Networks (ISDN) will make available new services and facilities for customers and Administrations, 2. that there is merit i
3、n harmonising the form in which these services are given to users in order to simplify their operating procedures, 3. that the services may require to interface with each other, 4. that harmonised services should result in lower overall costs and faster growth, 5. that there is a need to develop wit
4、hin a common framework coherent arrangements for subscriber access to different services provided. Such arrangements have to allow for various network architectures taking into account the varying conditions in different countries, 6. that unless harmonisation of the details of the services is achie
5、ved, incompatibilities may result between services within an Administration and between services offered by different Administrations, 7. that there are different National Numbering Plans in terms of length and structure, 8. that there is a need to utilise one existing world numbering plan if possib
6、le, 9. that the increase in the number length must be as small as possible, 1 O. that services should, where possible, use common supplementary services and facilities, e.g. Incoming Calls Barred, Call Diversion, 1 1. that the definition of services and facilities resulting from an ISDN would be of
7、value to manufacturers in guiding development and to the Administrations in their relations with consumer groups, 12. that CCITT have made a number of Recommendations standardizing the subscriber access for data services in digitdl networks, 13. that once subscribers have been connected both they an
8、d the Administration will benefit from the reduced marginal costs and installation lead-times for expanding the services available, 14. that the introduction should not adversely affect the Administrations requirements to exercise control over the use of the network, to collect the revenue due to it
9、 for the use of the network and to maintain the network economically, 15. that the Services and Supplementary Services/Add-On Characteristics provided are likely to increase and alter with time, while the service available to a subscriber on an ISDN should be more flexible and certainly no less flex
10、ible than the service obtainable from a combination of all the existing dedicated networks that it will be replacing, O O recommends the following services and facilities aspects on an Integrated Services Digital Network (ISDN).” Edition of January IS, 1988 CEPT T/SF*33*E 2326434 00091&3 & T/SF31 E
11、Page 3 STRUCTURE OF RECOMMENDATION T/SF 31 T/SF 31-01 General aspects of an ISDN T/SF 31-02 Bearer Services and Teleservices to be provided by ISDNs T/SF 31-03 In Preparation . T/SF 31-04 Interworking aspects of an ISDN T/SF 31-05 General Supplementary Services aspects of an ISDN T/SF 31-06 Suppleme
12、ntary Services to be provided in an ISDN T/SF 31-07 Operational Requirements and Relevance of ISDN Supplementary Services SUBJECT INDEX Auto Repeat Attempts . 31-01 Page 4 Availability of Services . 31-01 Page 6 Basic Access 3 1-0 1 Page 3 Basic Access Capabilities 31-01 Page 3 Bearer Service . 3 1-
13、0 1 Page 3 Bearer Service Attributes 31-01 Page 8 Call Handling Procedures 3 1-0 1 Page 4 Charging . 31-01 Page 2 Commercial Benefits of the ISDN 31-01 Page 1 Connection of More than One Terminal 31-01 Page 3 Definition of Supplementary Services . 31-05 Page 1 Description of Bearer Service to be Pro
14、vided by ISDNs . 31-02 Page 2 Electrical and Protocol Characteristics . 31-01 Page 3 End of Address Message 31-01 Page 6 Existing Services to be Supported on an ISDN . 31-02 Page 2 Flexibility of ISDN Design . 31-01 Page 1 General Intercommunicationa Aspects . 3 1-04 Page 1 Change of Service During
15、and Established Call . 31-01 Page 4 (Brief Description of Definitions) 31-05 Annex 2. Pages 18 to Description of Bearer Service 31-05 Annex 2. Page 1 Detailed Requirements for Intercommunication . 3 1-04 Page 1 Essential Differences Between Bearer Services and Teleservices 31-01 Page 8 Incoming Call
16、s to a Locally Busy Terminal 3 1-01 Page 4 Interworking of ISDN Bearer Services Matrix . 31-04 Annex 1. Page 1 Interworking Numbering Arrangements 3 1-01 Page 6 Inter-Relationship of Services 31-01 Page 9 Introduction of New Services 31-01 Page 3 List of Bearer Services . 31-02 Page 1 List of Supple
17、mentary Services 31-05 Page 1 List of Standardized Teleservices for the ISDN . 31-02 Page 1 Location of Supplementary Services 3 1-05 Page 1 Numbering Aspects . 31-01 Page 5 Outgoing Calls . 3 1-01 Page 4 Physical Connection for ISPBX Terminals 3 1-0 1 Page 2 Power Failure . 3 1-01 Page 2 Primary Ra
18、te . 31-01 Page 3 Priority 31-01 Page4 Provision of New Types of Supplementary Services . 31-05 Page 1 Provision. Removal and Withdrawal of Service . 31-01 Page 2 List of Supplementary Services 31-05 Annex 1. Page 1 Numbering. Addressing and Service Indication Aspects . 31-01 Page 5 Physical Connect
19、ion for Basic Access Terminal . 31-01 Page 2 . 232b4L4 OOOLBi T - CEPT T/SF*3L*E T/SF 31 E Page 4 QOS Values for ISDN Bearer Services . Rate Adaption . Relevance and Priority of Supplementary Services to ISDN Bearer Services Matrix . Relevance and Priority of Supplementaty Services to Teleservices M
20、atrix . . Relevance of Supplementary Services . Requirements Between ISDN Bearer Services Requirements Between ISDN and Non ISDN Services Requirements for Teleservices Rules for Channel Allocation security Selective Calling Sequential Charges Between Services . Service Design . Service Indicators .
21、Service Interworking Requirements. ISDN Bearer Services with Other Services Matrix . Subscriber Control of Channel Allocation . Supplementary Services General Aspects Supplementary Services to Bearer Services Matrix supplementary Services to Teleservices Matrix . Telephony Supported by the ISDN Tele
22、service Intercommunication Requirements Due to the Introduction of ISDN Teleservices Telephony at 3.1 kHz and 64 kbit/s . Charging Quality Requirements Terminal Intercommunication Service Types . Relevance of Supplementary Services . Attributes/Values . Operational Requirements . Testing Types of IS
23、DN Services . User Control Procedures User Interface (Excluding ISPBXs) Validation of Network Requirements . Voice Terminal . in preparation 31-01 Page 5 31-06 Annex 1. Pages 12 and 31-06 Annex 2. Pages 1 and 2 31-05 Page 1 31-04 Page 1 31-04 Page 1 31-04 Page 1 31-01 Page 5 31-01 Page 2 31-01 Page
24、5 31-01 Page 5 31-01 Page 1 31-01 Page6 31-04 Annex 2. Pages 12 and 31-01 Page 2 31-01 Page 5 31-05 Page 1 31-06 Page 1 31-06 Page 1 31-06 Page 1 31-02 Annex 2. Pages 12 and 3 1-04 3 1-02 3 1-02 3 1-02 3 1-02 31-02 31-01 31-01 31-01 Annex 3. Page 1 Annex 2. Pages 12 and Annex 2. Page 2 Annex 2. Page 2 Annex 2. Page 1 Annex 2. Page 2 Page 3 Page 2 Page 2 31-01 Page 4 31-01 Page 3 31-01 Page 4 31-01 Page 4 Edition of January 15. 1988
