Foreword
Introduction
1 Scope
2 Conformance
3 Normative references
4 Definitions
4.1 External definitions
4.2 Called user
4.3 Calling user
4.4 Call interruption
4.5 Call Priority Interruption Capability Level (CPICL)
4.6 Call Priority Interruption Protection Level (CPIPL)
4.7 Call protection
4.8 Established call
4.9 Established call user
4.10 Established call user's PINX
4.11 Forced release
4.12 Inter-PINX link
4.13 Interrupting PINX
4.14 Non-priority call
4.15 Priority call
4.16 Protected call
5 List of acronyms
6 Signalling protocol for the support of SS-CPI(P)
6.1 SS-CPI(P) description
6.2 SS-CPI(P) operational requirements
6.2.1 Requirements on the Originating PINX
6.2.2 Requirements on the Terminating PINX
6.2.3 Requirements on a Transit PINX
6.2.4 Requirements on the Interrupting PINX
6.2.5 Requirements on the Established call user's PINX
6.3 SS-CPI(P) coding requirements
6.3.1 Operations
6.3.2 Notifications
6.3.3 Information elements
6.3.4 Messages
6.4 SS-CPI state definitions
6.4.1 States at the Originating PINX
6.4.2 States at the Transit PINX
6.4.3 States at the Interrupting PINX
6.5 SS-CPIP state definitions
6.5.1 States at the Originating PINX
6.5.2 States at the Transit PINX
6.5.3 States at the Terminating PINX
6.6 SS-CPI signalling procedures for activation,
       deactivation and registration
6.7 SS-CPIP signalling procedures for activation,
       deactivation and registration
6.8 SS-CPI signalling procedures for invocation and operation
6.8.1 Actions at the Originating PINX
6.8.2 Actions at a Transit PINX
6.8.3 Actions at the Interrupting PINX
6.8.4 Actions at the Terminating PINX
6.8.5 Actions at the Established call user's PINX
6.9 SS-CPIP signalling procedures for invocation and operation
6.9.1 Actions at the Originating PINX
6.9.2 Actions at a Transit PINX
6.9.3 Actions at the Terminating PINX
6.10 SS-CPI impact of interworking with public ISDNs
6.11 SS-CPIP impact of interworking with public ISDNs
6.12 SS-CPI impact of interworking with non-ISDNs
6.13 SS-CPIP impact of interworking with non-ISDNs
6.14 Protocol interactions between SS-CPI(P) and other
       supplementary services and ANFs
6.14.1 Interaction with Calling Name Identification
         Presentation (SS-CNIP)
6.14.2 Interaction with Connected Name Identification
         Presentation (SS-CONP)
6.14.3 Interaction with Completion of Call to Busy
         Subscriber (SS-CCBS)
6.14.4 Interaction with Completion of Call on No Reply
         (SS-CCNR)
6.14.5 Interaction with Call Transfer (SS-CT)
6.14.6 Interaction with Call Forwarding Unconditional
         (SS-CFU)
6.14.7 Interaction with Call Forwarding Busy (SS-CFB)
6.14.8 Interaction with Call Forwarding No Reply (SS-CFNR)
6.14.9 Interaction with Call Deflection (SS-CD)
6.14.10 Interaction with Path Replacement (ANF-PR)
6.14.11 Interaction with Call Offer (SS-CO)
6.14.12 Interaction with Call Intrusion (SS-CI)
6.14.13 Interaction with Do Not Disturb (SS-DND)
6.14.14 Interaction with Do Not Disturb Override (SS-DNDO)
6.14.15 Interaction with Advice of Charge (SS-AOC)
6.14.16 Interaction with Recall (SS-RE)
6.14.17 Interaction with Call Interception (ANF-CINT)
6.14.18 Interaction with Transit Counter (ANF-TC)
6.14.19 Interaction with Cordless Terminal Location
           Registration (SS-CTLR)
6.14.20 Interaction with Cordless Terminal Incoming Call
           (ANF-CTMI)
6.14.21 Interaction with Cordless Terminal Outgoing Call
           (ANF-CTMO)
6.14.22 Interaction with Cordless Terminal Authentication
           of a CTM user (SS-CTAT)
6.14.23 Interaction with Cordless Terminal Authentication
           of a PISN (SS-CTAN)
6.14.24 Interaction with Message Waiting Indication (SS-MWI)
6.14.25 Interaction with Common Information (ANF-CMN)
6.15 SS-CPI parameter values (timers)
6.15.1 Timer T1
Annexes
A - Protocol Implementation Conformance Statement (PICS) Proforma
B - Examples of message sequences
C - Specification and Description Language (SDL) representation
    of procedures