1
Scope
2
References
3
Definitions
4
Abbreviations
5
Assumptions and partitioning
6
Basic CAS package
6.1 Properties
6.2 Events
6.3 Signals
6.4 Statistics
6.5 Procedures
7
Basic CAS addressing package
7.1 Properties
7.2 Events
7.3 Signals
7.4 Statistics
7.5 Procedures
8
Robbed bit signalling package
8.1 Properties
8.2 Events
8.3 Signals
8.4 Statistics
8.5 Procedures
9
Operator services and emergency services package
9.1 Properties
9.2 Events
9.3 Signals
9.4 Statistics
9.5 Procedures
10 Operator services extension
package
10.1 Properties
10.2 Events
10.3 Signals
10.4 Statistics
10.5 Procedures
Appendix I – Call
Flows
I.1 Basic single-stage MF
or DTMF wink start or immediate start
I.2 EAOSS termination –
Telephone company operator services call
I.3 EAOSS termination –
IC/INC operator services call indirect through an access tandem (Overlap
outpulsing)
I.4 EAOSS termination –
IC/INC operator services call indirect through an access tandem (No overlap
outpulsing)
I.5 EAOSS termination –
IC/INC "National" operator direct to the IC/INC
(Overlap outpulsing)
I.6 EAOSS termination –
IC/INC "National" operator direct to the IC/INC (No overlap
outpulsing)
I.7 EAOSS origination –
Telephone operating company serves the call