1
Scope
2 References
3 Definitions
4 Abbreviations
5 Basic model
5.1 Separation of call control and
bearer control
5.2 Point-to-point and multi-party
call control
5.3 Call control architecture
5.4 Relationship to bearer control
architecture
5.5 Screening function
6 Operational requirements
6.1 Provision and withdrawal
6.2 Transport mechanism
7 Primitive definitions and state
definitions
7.1 Service primitives
7.1.1 Service primitive architecture
7.1.2 ESTABLISH-CALL
7.1.3 COMPLETE-CALL
7.1.4 STATUS-CALL
7.1.5 RELEASE-CALL
7.1.6 PROCEED-CALL
7.1.7 ERROR
7.2 Parameters
7.2.1 Call segment ID
7.2.2 Call description
7.2.3 Call changed parameter
7.2.4 Await complete indicator
7.2.5 Bearer establishment address
7.2.6 Release cause
7.2.7 Result
7.2.8 Diagnostics
7.3 Call control states
7.3.1 Call Idle
7.3.2 Call Initiated
7.3.3 Outgoing Call Proceeding
7.3.4 Call Ready
7.3.5 Call Present
7.3.6 Incoming Call Proceeding
7.3.7 Await Call Completion
7.3.8 Call Active
7.3.9 Call Release Request
7.3.10 Call Release Indication
8 Coding requirements
8.1 Abstract definition of the call control operations
8.2 Definition of Call Control Object
Super Class
8.3 Definitions of Call Control Object
Classes in the Information Model
9 Procedures
9.1 Call establishment request
9.1.1 Preceding CC entity
9.1.2 Succeeding CC entity
9.2 Call Proceeding
9.2.1 Preceding CC entity
9.2.2 Succeeding CC entity
9.3 Call accepted
9.3.1 Preceding CC entity
9.3.2 Succeeding CC entity
9.4 Completion of call establishment
9.4.1 Preceding CC entity
9.4.2 Succeeding CC entity
9.5 Call status change report
9.5.1 General
9.5.2 Initiating CC entity
9.5.3 Receiving CC entity
9.6 Call establishment failure
9.6.1 Preceding CC entity
9.6.2 Succeeding CC entity
9.7 Call clearing
9.7.1 Procedures at the CC entity that initiates call clearing
9.7.2 Procedures at the CC entity that responds to clearing
9.7.3 Call clearing collision
9.8 Exceptional procedures
9.8.1 Timer expiry
9.8.2 Receipt of APDUs with unknown Call Segment Id
9.8.3 Receipt of APDUs with duplicated Call Segment Id
9.8.4 Receipt of APDUs out of sequence
9.8.5 Receipt of reject APDUs
9.8.6 Handling of unrecognized parameters within CC-Operations
10 Parameter values (Timers)
11 Transport mechanism
12 SDL Diagrams
12.1 Outgoing CC-ASE
12.2 Incoming CC-ASE
Annex A - Bearer
coordination requirements for CC signalling service users
A.1 Requirements at a CC entity that establishes
a bearer towards an adjacent CC entity
A.2 Requirements at a CC entity that
receives a bearer establishment from an adjacent CC entity
A.3 Additional requirements at a
transit CC
A.4 Requirement on call clearing
Annex B - Call
description handling requirements for CC signalling service users
B.1 Call description handling at a CC
signalling service user within an originating CC entity
B.2 Call description handling at a CC
signalling service user within a transit CC entity
B.3 Call description handling at a CC
signalling service user within a terminating CC entity
B.4 Call description errors
B.5 End-to-end relevant object
handling at a CC signalling service user within a transit CC entity
B.6 Changes to the Information Model
B.6.1 Deletion of a Service Component Object
B.6.2 Addition of a Service Component Object
B.6.3 Changes to the attributes of the Party Object
B.6.4 Changes to the Open Call attribute of the Call Object
Annex C -
Interworking
C.1 Interworking with networks not
supporting separation of Call Control and Bearer Control
C.1.1 Outgoing call establishment
C.1.2 Incoming bearer establishment
C.1.3 Addition of bearers to an existing call
C.2 Interworking with simultaneous
call and bearer establishment
C.2.1 Outgoing call establishment
C.2.2 Incoming call and bearer establishment
C.2.3 Addition of bearers to an existing call
Annex D -
Transport mechanisms
D.1 Connection oriented-Bearer
independent
D.2 Connectionless-Bearer independent
Appendix I -
Information flow diagrams
I.1 Call Establishment using a
two-message sequence
I.2 Call Establishment using a
three-message sequence
I.3 Call Release
Appendix II - Imported
ASN.1 definitions
Appendix III - Object
identifiers defined in this Recommendation