ITU-T Rec. I.211 (1991) – B-ISDN SERVICE ASPECTS
FOREWORD
Preamble to B-ISDN Recommendations
Foreword
1 Classification of broadband ISDN services
    1.1 General
    1.2 Service classes
    1.3 Definition of service classes
        1.3.1 conversational services
        1.3.2 messaging services
        1.3.3 retrieval services
        1.3.4 distribution services without user individual presentation control
        1.3.5 distribution services with user individual presentation control
    1.4 Identification of possible broadband services
2 General network aspects of broadband services
    2.1 General
    2.2 Multimedia aspects
    2.3 Quality of service aspects
        2.3.1 General
        2.3.2 QOS indication and negotiation
    2.4 Service bit rate aspects
        2.4.1 General
        2.4.2 Constant bit rate (CBR) services
        2.4.3 Variable bit rate (VBR) services
        2.4.4 Maximum service bit rate supported by the 155.52 Mbit/s interface
        2.4.5 Maximum service bit rate supported by the 622.08 Mbit/s interface
        2.4.6 Bit rate assurances
    2.5 Service timing/synchronization aspects
        2.5.1 General
        2.5.2 End-to-end methods
        2.5.3 Network methods
    2.6 Simultaneous service capabilities
    2.7 Connectionless data service aspects
    2.8 Interworking aspects
    2.9 Signalling aspects
        2.9.1 Interactive services
        2.9.2 Distribution services
3 Video coding aspects
    3.1 General
    3.2 ATM network impacts on video coding
    3.3 Layered video coding for service integration
    3.4 Constant bit rate video coding
    3.5 Variable bit rate video coding
    3.6 Consideration of video coding methods
ANNEX A – Alphabetical list of abbreviations used in this Recommendation