ETSI ETR 296 TECHNICAL July 1996 REPORT Source: ETSI TC-TE Reference: DTR/TE-10012 ICS: 33.020 Key words: multimedia Terminal Equipment (TE); Multimedia; Standardization areas to be covered by the Multimedia project ETSI European Telecommunications Standards Institute ETSI Secretariat Postal address: F-06921 Sophia Antipolis CEDEX - FRANCE Office address: 650 Route des Lucioles - Sophia Antipolis - Valbonne - FRANCE X.400: c=fr, a=atlas, p=etsi, s=secretariat - Internet: [email protected] Tel.: +33 92 94 42 00 - Fax: +33 93 65 47 16 Copyright Notification: No part may be reproduced except as authorized by written permission. The copyright and the foregoing restriction extend to reproduction in all media. © European Telecommunications Standards Institute 1996. All rights reserved. Page 2 ETR 296: July 1996 Whilst every care has been taken in the preparation and publication of this document, errors in content, typographical or otherwise, may occur. 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Page 3 ETR 296: July 1996 Contents Foreword .......................................................................................................................................................7 Introduction....................................................................................................................................................7 1 Scope ..................................................................................................................................................9 2 References..........................................................................................................................................9 3 Definitions and abbreviations ..............................................................................................................9 3.1 Definitions ............................................................................................................................9 3.2 Abbreviations .....................................................................................................................10 4 Approach to identifying gaps in multimedia standardization .............................................................13 4.1 The functional model .........................................................................................................13 4.2 Existing standards..............................................................................................................16 4.3 Analysing existing standards in respect to the functional model .......................................16 5 Retrieval services ..............................................................................................................................17 5.1 General description............................................................................................................17 5.2 User ...................................................................................................................................18 5.2.1 Functions.......................................................................................................18 5.2.1.1 Description...........................................................................18 5.2.1.2 Existing standards and work items......................................18 5.2.1.3 Assessment of standardization in this area .........................18 5.2.2 Interface to the terminal functions .................................................................19 5.2.2.1 Description...........................................................................19 5.2.2.2 Existing standards and work items......................................19 5.2.2.3 Assessment of standardization in this area .........................20 5.2.3 Protocols to other user functions...................................................................20 5.2.3.1 Description...........................................................................20 5.2.3.2 Existing standards and work items......................................21 5.2.3.3 Assessment of standardization in this area .........................21 5.3 Terminal.............................................................................................................................22 5.3.1 Functions.......................................................................................................22 5.3.1.1 Description...........................................................................22 5.3.1.2 Existing standards and work items......................................22 5.3.1.3 Assessment of standardization in this area .........................24 5.3.2 Interfaces to the connection functions...........................................................24 5.3.2.1 Description...........................................................................24 5.3.2.2 Existing standards and work items......................................25 5.3.2.3 Assessment of standardization in this area .........................25 5.3.3 Protocols to service support..........................................................................26 5.3.3.1 Description...........................................................................26 5.3.3.2 Existing standards and work items......................................27 5.3.3.3 Assessment of standardization in this area .........................28 5.3.4 Protocols to other terminal functions.............................................................28 5.3.4.1 Description...........................................................................28 5.3.4.2 Existing standards and work items......................................28 5.3.4.3 Assessment of standardization in this area .........................28 5.4 Service support functions ..................................................................................................29 5.4.1 Functions.......................................................................................................29 5.4.1.1 Description...........................................................................29 5.4.1.2 Existing standards and work items......................................29 5.4.1.3 Assessment of standardization in this area .........................29 5.4.2 Interfaces to access the interconnection functions .......................................30 5.4.2.1 Description...........................................................................30 5.4.2.2 Existing standards and work items......................................30 Page 4 ETR 296: July 1996 5.4.2.3 Assessment of standardization in this area ........................ 30 5.4.3 Protocols to other service support functions................................................. 30 5.4.3.1 Description .......................................................................... 30 5.4.3.2 Existing standards and work items ..................................... 31 5.4.3.3 Assessment of standardization in this area ........................ 31 6 Teleconference services................................................................................................................... 31 6.1 General description ........................................................................................................... 31 6.2 User................................................................................................................................... 33 6.2.1 Functions ...................................................................................................... 33 6.2.1.1 Description .......................................................................... 33 6.2.1.2 Existing standards and work items ..................................... 33 6.2.1.3 Assessment of standardization in this area ........................ 34 6.2.2 Interfaces to the Terminal............................................................................. 34 6.2.2.1 Description .......................................................................... 34 6.2.2.2 Existing standards and work items ..................................... 34 6.2.2.3 Assessment of standardization in this area ........................ 34 6.2.3 Protocols to other user functions .................................................................. 35 6.2.3.1 Description .......................................................................... 35 6.2.3.2 Existing standards and work items ..................................... 35 6.2.3.3 Assessment of standardization in this area ........................ 35 6.3 Terminal ............................................................................................................................ 36 6.3.1 Functions ...................................................................................................... 36 6.3.1.1 Description .......................................................................... 36 6.3.1.2 Existing standards and work items ..................................... 36 6.3.1.3 Assessment of standardization in this area ........................ 40 6.3.2 Interfaces to access the connection functions.............................................. 41 6.3.2.1 Description .......................................................................... 41 6.3.2.2 Existing standards and work items ..................................... 41 6.3.2.3 Assessment of standardization in this area ........................ 42 6.3.3 Protocols to other terminal functions ...........................................................