1 Scope
1.1 Definitions, abbreviations and references
1.2 Application to interface structure
1.3 Capabilities supported by this Recommendation
2
Overview of call/connection control
2.1 B-ISDN call/connection states
2.2 Additional B-ISDN call/connection states relating to
interworking requirements
2.3 B-ISDN call/connection states for global call reference
3
Message functional definitions and content
3.1 Messages for B-ISDN call and connection control
3.2 Additional or modified messages related for the support of 64
kbit/s based ISDN circuit-mode services
3.3 Messages used with the global call reference
4
General message format and information elements coding
4.1 Overview
4.2 Protocol discriminator
4.3 Call reference
4.4 Message type, and message length
4.5 Variable length information elements for B-ISDN environment
4.6 Information elements for the support of 64 kbit/s based ISDN
circuit-mode services
5
B-ISDN call/connection control procedures
5.1 Call/connection establishment at the originating interface
5.2 Call/connection establishment at the destination interface –
Point-to-point access configuration call offering
5.3 Call/connection establishment at the destination –
Point-to-multipoint access arrangement call offering
5.4 Call/connection clearing
5.5 Restart procedure
5.6 Handling of error conditions
5.7 Error procedures with explicit action indication
5.8 Handling of messages with insufficient information
5.9 Notification procedures
6
Procedures for the support of
64 kbit/s based circuit-mode lSDN services in B-ISDN and access signalling
interworking between N-ISDN and B-ISDN
6.1 Introduction
6.2 Information elements for N-ISDN services in B-ISDN
6.3 Interworking N-ISDN ® B-ISDN
6.4 Interworking B-ISDN ® N-ISDN
6.5 Overlap sending and receiving
6.6 Notification of interworking
6.7 Additional features with regard to the provision of N-ISDN
services
7
List of timers
7.1 Timers in the network side
7.2 Timers in the user side
8
Primitives
8.1 Introduction
8.2 Description of the primitives
Annex A – Network side and user side SDL diagrams
A.1 Network side SDL
diagrams
A.2 User side SDL diagramas
Annex B – Compatibility checking
B.1 Introduction
B.2 Calling side compatibility checking
B.3 Called side compatibility and address checking
Annex C – Broadband low layer information negotiation
C.1 General
C.2 Low layer compatibility notification to the called user
C.3 B-LLI negotiation between users
C.4 Alternate requested values
Annex D – Transit network selection
D.1 Selection not supported
D.2 Selection supported
Annex E – Mapping functions to support 64 kbit/s based circuit-mode ISDN
services in B-ISDN and interworking between N-ISDN and B-ISDN (DSS 1/DSS 2)
E.1 Introduction
E.2 Mapping functions for the direction DSS 2 ® DSS 1
E.3 Mapping functions for the direction DSS 1 ® DSS 2
E.4 Codepoint values of information elements to support 64 kbit/s
based circuit-mode ISDN services in B-ISDN
Annex F – ATM adaptation layer parameters indication and negotiation
F.1 General
F.2 ATM adaptation layer parameter indication in the SETUP message
F.3 Maximum CPCS-SDU size negotiation
F.4 MID range negotiation
F.5 Use of forward and backward maximum CPCS-SDU size by the AAL
entity in the user plane
Annex G
Annex H – Extensions for symmetric call operation
Annex I – Handling of the OAM traffic descriptor
I.1 Use of the OAM traffic descriptor information element
I.2 Handling of the OAM traffic descriptor information element in
the SETUP message
I.3 Procedure at the destination user-network interface
Annex J – Definitions, Abbreviations and References
J.1 Definitions
J.2 Abbreviations
J.3 References
Annex K – Handling of the End-to-end transit delay information element
K.1 General
K.2 Handling of the End-to-end transit delay information element
in the SETUP message at the originating UNI
K.3 Handling of the End-to-end transit delay information element
in the SETUP message at the destination UNI
K.4 Handling of the End-to-end transit delay information element
by the called user
K.5 Handling of the
End-to-end transit delay information element in the CONNECT message at
the destination UNI
K.6 Handling of the End-to-end transit delay information element
in the CONNECT message at the originating UNI
Annex L – Examples for Message Structure and Information Element Format
L.1 Introduction
L.2 Structure using of an information subfield identifiers
L.3 The ordering of information elements
Appendix I – Guidelines for the use of Instruction indicators
Appendix II – Information items for connection establishment in B-ISDN
II.1 Scope
II.2 Information items specified by the calling terminal
Appendix III – Status monitoring procedures for Semi-Permanent Virtual Channel
Connections
III.1 Messages used for SPC status
III.2 General information elements
III.3 Other information elements
III.4 Procedures across the UNI
III.5 Error conditions
III.6 System timers
III.7 System parameters