ISO/IEC 13870:2003
Information technology — Telecommunications and information exchange between systems — Private Integrated Services Network — Inter-exchange signalling protocol — Call Completion supplementary services
ISO/IEC 13870:2003 specifies the signalling protocol for the support of the Call Completion supplementary services at the Q reference point between Private Integrated services Network eXchanges (PINXs) connected together within a Private Integrated Services Network (PISN). The Call Completion supplementary services are Completion of Calls to Busy Subscribers (SS-CCBS) and Completion of Calls on No Reply (SS-CCNR).
SS-CCBS enables a calling User A, encountering a busy destination User B, to have the call completed when User B becomes not busy, without having to make a new call attempt.
SS-CCNR enables a calling User A, encountering a destination User B that, though alerted, does not answer, to have the call completed when User B becomes not busy again after a period of activity, without having to make a new call attempt.
The Q reference point is defined in ISO/IEC 11579-1.
Service specifications are produced in three stages and according to the method specified in ETS 300 387. ISO/IEC 13870:2003 contains the stage 3 specification for the Q reference point and satisfies the requirements identified by the stage 1 and stage 2 specifications in ISO/IEC 13866.
The signalling protocols for SS-CCBS and SS-CCNR operate on top of the signalling protocol for basic circuit switched call control, as specified in ISO/IEC 11572, and uses certain aspects of the generic procedures for the control of supplementary services specified in ISO/IEC 11582.
ISO/IEC 13870:2003 also specifies additional signalling protocol requirements for the support of interactions at the Q reference point between SS-CC and other supplementary services and ANFs.
ISO/IEC 13870:2003 is applicable to PINXs which can interconnect to form a PISN.
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Foreword
Introduction
1 Scope
2 Conformance
3 Normative references
4 Definitions
4.1 External definitions
4.2 Other definitions
4.2.1 CC Call
4.2.2 CC Request
4.2.3 Connection release
4.2.4 Connection retention
4.2.5 Path reservation
4.2.6 Service retention
5 Acronyms
6 Signalling protocol for the support of SSCCBS and SSCCNR
6.1 SSCCBS/CCNR description
6.2 SSCC 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
6.3 SSCC coding requirements
6.3.1 Operations
6.3.2 Information elements
6.3.2.1 Facility information element
6.3.2.2 Other information elements
6.3.3 Messages
6.4 SSCC State definitions
6.4.1 States at the Originating PINX
6.4.1.1 CCIdle
6.4.1.2 CCInvokedUser-ARET
6.4.1.3 CCInvokedUser-ARLS
6.4.1.4 CCPathSetup
6.4.1.5 CCRingout
6.4.1.6 CCSuspendedUser-A
6.4.1.7 CCWaitACK
6.4.1.8 CCWaitUserAAnswerN
6.4.1.9 CCWaitUserAAnswerR
6.4.1.10 CCWaitUserAFree
6.4.2 States at the Terminating PINX
6.4.2.1 CCIdle
6.4.2.2 CCAwaitCallCompletion
6.4.2.3 CCInvokedUser-B
6.4.2.4 CCPathComplete
6.4.2.5 CCSuspendedUser-B
6.4.2.6 CCWaitUserBAlert
6.5 SSCC signalling procedures
6.5.1 Major options
6.5.1.1 Path Reservation
6.5.1.2 Retention of signalling connection
6.5.1.3 Service retention
6.5.2 Actions at the Originating PINX
6.5.2.1 Normal procedures
6.5.2.1.1 CCBS invocation
6.5.2.1.2 CCNR invocation
6.5.2.1.3 SSCC invocation detailed procedure
6.5.2.1.4 Indication that User B is not busy
6.5.2.1.5 CC Call without Path Reservation
6.5.2.1.6 CC Call with Path Reservation
6.5.2.1.7 User A busy, nonreservation method
6.5.2.1.8 User A busy before Path Reservation
6.5.2.1.9 User A busy after Path Reservation
6.5.2.1.10 CCBS/CCNR cancellation
6.5.2.2 Exceptional procedures
6.5.2.2.1 CCBS/CCNR invocation
6.5.2.2.2 Unexpected APDUs
6.5.2.2.3 Service duration timer expiry
6.5.2.2.4 SSCC Recall timer expiry
6.5.2.2.5 Failure of Path Reservation
6.5.2.2.6 Failure of CC Call presentation
6.5.3 Actions at the Terminating PINX
6.5.3.1 Normal procedures
6.5.3.1.1 CCBS invocation
6.5.3.1.2 CCNR invocation
6.5.3.1.3 SSCC invocation detailed procedure
6.5.3.1.4 Indication that User B is not busy
6.5.3.1.5 CC Call without Path Reservation
6.5.3.1.6 CC Call with Path Reservation
6.5.3.1.7 CCBS/CCNR suspension / resumption
6.5.3.1.8 CCBS/CCNR cancellation
6.5.3.2 Exceptional procedures
6.5.3.2.1 CCBS/CCNR invocation
6.5.3.2.2 Unexpected APDUs
6.5.3.2.3 User B busy again on Path Reservation attempt
6.5.3.2.4 User B busy again on CC Call presentation
6.5.3.2.5 Interruption of CC Call
6.5.4 Actions at the Transit PINX
6.6 Impact of interworking with public ISDNs
6.6.1 Incoming Gateway PINX procedures: SSCCBS request from a public ISDN
6.6.2 Outgoing Gateway PINX procedures: SSCCBS request to a public ISDN
6.7 Impact of interworking with nonISDNs
6.7.1 Incoming Gateway PINX procedures
6.7.2 Outgoing Gateway PINX procedures
6.8 Protocol interaction between SS-CCBS and Other Supplementary Services and ANFs
6.8.1 Calling Name Identification Presentation (SS-CNIP)
6.8.2 Connected Name Identification Presentation (SS-CONP)
6.8.3 Completion of Calls on No Reply (SS-CCNR)
6.8.4 Call Transfer
6.8.5 Call Forwarding Unconditional (SS-CFU)
6.8.5.1 Originating PINX procedures for invoking SS-CCBS at a SS-CFU diverted-to user
6.8.5.2 Originating PINX procedures if SS-CFU is activated by User A
6.8.5.3 Terminating PINX procedures if SS-CFU is activated by User B after SS-CCBS has been invoked
6.8.6 Call Forwarding Busy (SS-CFB)
6.8.6.1 Originating PINX procedures for invoking SS-CCBS at a SS-CFB diverted-to user
6.8.6.2 Originating PINX procedures if SS-CFB is activated by User A
6.8.6.3 Terminating PINX procedures if SS-CFB is activated by User B after SS-CCBS has been invoked
6.8.7 Call Forwarding No Reply (SS-CFNR)
6.8.8 Call Deflection (SS-CD)
6.8.9 Path Replacement (ANF-PR)
6.9 Protocol interaction between SS-CCNR and other supplementary Services and ANFs
6.9.1 Calling Name Identification Presentation (SS-CNIP)
6.9.2 Connected Name Identification Presentation (SS-CONP)
6.9.3 Completion of Calls to Busy Subscribers (SS-CCBS)
6.9.4 Call Transfer
6.9.5 Call Forwarding Unconditional (SS-CFU)
6.9.5.1 Originating PINX procedures for invoking SS-CCNR at a SS-CFU diverted-to user
6.9.5.2 Originating PINX procedures if SS-CFU is activated by User A
6.9.5.3 Terminating PINX procedures if SS-CFU is activated by User B after SS-CCNR has been invoked
6.9.6 Call Forwarding Busy (SS-CFB)
6.9.6.1 Originating PINX procedures for invoking SS-CCNR at a SS-CFB diverted-to user
6.9.6.2 Originating PINX procedures if SS-CFB is activated by User A
6.9.6.3 Terminating PINX procedures if SS-CFB is activated by User B after SS-CCNR has been invoked
6.9.7 Call Forwarding No Reply (SS-CFNR)
6.9.7.1 Originating PINX procedures for invoking SS-CCNR at a SS-CFNR diverted-to user
6.9.7.2 Originating PINX procedures if SS-CFNR is activated by User A
6.9.7.3 Terminating PINX procedures if SS-CFNR is activated by User B after SS-CCNR has been invoked
6.9.8 Call Deflection (SS-CD)
6.9.9 Path Replacement (ANF-PR)
6.10 Parameter values (timers)
6.10.1 Timers at the Originating PINX
6.10.2 Timers at the Terminating PINX
Annex A(normative)Protocol Implementation Conformance Statement (PICS) proforma
A.1 Introduction
A.2 Instructions for completing the PICS proforma
A.2.1 General structure of the PICS proforma
A.2.2 Additional Information
A.2.3 Exception Information
A.3 PICS proforma for ISO/IEC 13870
A.3.1 Implementation Identification
A.3.2 Protocol Summary
A.3.3 General
A.3.4 Procedures at the Originating PINX
A.3.5 Procedures at the Terminating PINX
A.3.6 Procedures at a Gateway PINX
A.3.7 Coding
A.3.8 Interactions between SSCCBS and SS-CFU/SSCDI
A.3.9 Interactions between SSCCBS and SSCFB
A.3.10 Interactions between SSCCNR and SS-CFU/SSCDI
A.3.11 Interactions between SSCCNR and SS-CFB
A.3.12 Interactions between SSCCNR and SS-CFNR/SSCDA
A.3.13 Timers
Annex B(informative)Imported ASN.1 definitions
Annex C(informative)Examples of messages sequences
C.1 Successful CCBS
C.1.1 With path reservation and connection release
C.1.2 Without path reservation
C.2 Successful CCNR
C.3 User A busy
C.3.1 Path reservation case
C.3.2 Nonreservation case
C.4 User B busy again
C.4.1 At path reservation
C.4.2 At CC Call presentation without path reservation, without service retention
C.4.3 At CC Call presentation without path reservation, with service retention
Annex D(informative)Specification and Description Language (SDL)Representation of Procedures
D.1 Behaviour of the Originating PINX
D.2 Behaviour of the Terminating PINX
Annex E(informative)Bibliography
Annex F(normative)ASN.1 definitions according to ITU-T Recs. X.208 / X.209
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Foreword
Introduction
1 Scope
2 Conformance
3 Normative references
4 Definitions
4.1 External definitions
4.2 Other definitions
4.2.1 CC Call
4.2.2 CC Request
4.2.3 Connection release
4.2.4 Connection retention
4.2.5 Path reservation
4.2.6 Service retention
5 Acronyms
6 Signalling protocol for the support of SSCCBS and SSCCNR
6.1 SSCCBS/CCNR description
6.2 SSCC 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
6.3 SSCC coding requirements
6.3.1 Operations
6.3.2 Information elements
6.3.2.1 Facility information element
6.3.2.2 Other information elements
6.3.3 Messages
6.4 SSCC State definitions
6.4.1 States at the Originating PINX
6.4.1.1 CCIdle
6.4.1.2 CCInvokedUser-ARET
6.4.1.3 CCInvokedUser-ARLS
6.4.1.4 CCPathSetup
6.4.1.5 CCRingout
6.4.1.6 CCSuspendedUser-A
6.4.1.7 CCWaitACK
6.4.1.8 CCWaitUserAAnswerN
6.4.1.9 CCWaitUserAAnswerR
6.4.1.10 CCWaitUserAFree
6.4.2 States at the Terminating PINX
6.4.2.1 CCIdle
6.4.2.2 CCAwaitCallCompletion
6.4.2.3 CCInvokedUser-B
6.4.2.4 CCPathComplete
6.4.2.5 CCSuspendedUser-B
6.4.2.6 CCWaitUserBAlert
6.5 SSCC signalling procedures
6.5.1 Major options
6.5.1.1 Path Reservation
6.5.1.2 Retention of signalling connection
6.5.1.3 Service retention
6.5.2 Actions at the Originating PINX
6.5.2.1 Normal procedures
6.5.2.1.1 CCBS invocation
6.5.2.1.2 CCNR invocation
6.5.2.1.3 SSCC invocation detailed procedure
6.5.2.1.4 Indication that User B is not busy
6.5.2.1.5 CC Call without Path Reservation
6.5.2.1.6 CC Call with Path Reservation
6.5.2.1.7 User A busy, nonreservation method
6.5.2.1.8 User A busy before Path Reservation
6.5.2.1.9 User A busy after Path Reservation
6.5.2.1.10 CCBS/CCNR cancellation
6.5.2.2 Exceptional procedures
6.5.2.2.1 CCBS/CCNR invocation
6.5.2.2.2 Unexpected APDUs
6.5.2.2.3 Service duration timer expiry
6.5.2.2.4 SSCC Recall timer expiry
6.5.2.2.5 Failure of Path Reservation
6.5.2.2.6 Failure of CC Call presentation
6.5.3 Actions at the Terminating PINX
6.5.3.1 Normal procedures
6.5.3.1.1 CCBS invocation
6.5.3.1.2 CCNR invocation
6.5.3.1.3 SSCC invocation detailed procedure
6.5.3.1.4 Indication that User B is not busy
6.5.3.1.5 CC Call without Path Reservation
6.5.3.1.6 CC Call with Path Reservation
6.5.3.1.7 CCBS/CCNR suspension / resumption
6.5.3.1.8 CCBS/CCNR cancellation
6.5.3.2 Exceptional procedures
6.5.3.2.1 CCBS/CCNR invocation
6.5.3.2.2 Unexpected APDUs
6.5.3.2.3 User B busy again on Path Reservation attempt
6.5.3.2.4 User B busy again on CC Call presentation
6.5.3.2.5 Interruption of CC Call
6.5.4 Actions at the Transit PINX
6.6 Impact of interworking with public ISDNs
6.6.1 Incoming Gateway PINX procedures: SSCCBS request from a public ISDN
6.6.2 Outgoing Gateway PINX procedures: SSCCBS request to a public ISDN
6.7 Impact of interworking with nonISDNs
6.7.1 Incoming Gateway PINX procedures
6.7.2 Outgoing Gateway PINX procedures
6.8 Protocol interaction between SS-CCBS and Other Supplementary Services and ANFs
6.8.1 Calling Name Identification Presentation (SS-CNIP)
6.8.2 Connected Name Identification Presentation (SS-CONP)
6.8.3 Completion of Calls on No Reply (SS-CCNR)
6.8.4 Call Transfer
6.8.5 Call Forwarding Unconditional (SS-CFU)
6.8.5.1 Originating PINX procedures for invoking SS-CCBS at a SS-CFU diverted-to user
6.8.5.2 Originating PINX procedures if SS-CFU is activated by User A
6.8.5.3 Terminating PINX procedures if SS-CFU is activated by User B after SS-CCBS has been invoked
6.8.6 Call Forwarding Busy (SS-CFB)
6.8.6.1 Originating PINX procedures for invoking SS-CCBS at a SS-CFB diverted-to user
6.8.6.2 Originating PINX procedures if SS-CFB is activated by User A
6.8.6.3 Terminating PINX procedures if SS-CFB is activated by User B after SS-CCBS has been invoked
6.8.7 Call Forwarding No Reply (SS-CFNR)
6.8.8 Call Deflection (SS-CD)
6.8.9 Path Replacement (ANF-PR)
6.9 Protocol interaction between SS-CCNR and other supplementary Services and ANFs
6.9.1 Calling Name Identification Presentation (SS-CNIP)
6.9.2 Connected Name Identification Presentation (SS-CONP)
6.9.3 Completion of Calls to Busy Subscribers (SS-CCBS)
6.9.4 Call Transfer
6.9.5 Call Forwarding Unconditional (SS-CFU)
6.9.5.1 Originating PINX procedures for invoking SS-CCNR at a SS-CFU diverted-to user
6.9.5.2 Originating PINX procedures if SS-CFU is activated by User A
6.9.5.3 Terminating PINX procedures if SS-CFU is activated by User B after SS-CCNR has been invoked
6.9.6 Call Forwarding Busy (SS-CFB)
6.9.6.1 Originating PINX procedures for invoking SS-CCNR at a SS-CFB diverted-to user
6.9.6.2 Originating PINX procedures if SS-CFB is activated by User A
6.9.6.3 Terminating PINX procedures if SS-CFB is activated by User B after SS-CCNR has been invoked
6.9.7 Call Forwarding No Reply (SS-CFNR)
6.9.7.1 Originating PINX procedures for invoking SS-CCNR at a SS-CFNR diverted-to user
6.9.7.2 Originating PINX procedures if SS-CFNR is activated by User A
6.9.7.3 Terminating PINX procedures if SS-CFNR is activated by User B after SS-CCNR has been invoked
6.9.8 Call Deflection (SS-CD)
6.9.9 Path Replacement (ANF-PR)
6.10 Parameter values (timers)
6.10.1 Timers at the Originating PINX
6.10.2 Timers at the Terminating PINX
Annex A(normative)Protocol Implementation Conformance Statement (PICS) proforma
A.1 Introduction
A.2 Instructions for completing the PICS proforma
A.2.1 General structure of the PICS proforma
A.2.2 Additional Information
A.2.3 Exception Information
A.3 PICS proforma for ISO/IEC 13870
A.3.1 Implementation Identification
A.3.2 Protocol Summary
A.3.3 General
A.3.4 Procedures at the Originating PINX
A.3.5 Procedures at the Terminating PINX
A.3.6 Procedures at a Gateway PINX
A.3.7 Coding
A.3.8 Interactions between SSCCBS and SS-CFU/SSCDI
A.3.9 Interactions between SSCCBS and SSCFB
A.3.10 Interactions between SSCCNR and SS-CFU/SSCDI
A.3.11 Interactions between SSCCNR and SS-CFB
A.3.12 Interactions between SSCCNR and SS-CFNR/SSCDA
A.3.13 Timers
Annex B(informative)Imported ASN.1 definitions
Annex C(informative)Examples of messages sequences
C.1 Successful CCBS
C.1.1 With path reservation and connection release
C.1.2 Without path reservation
C.2 Successful CCNR
C.3 User A busy
C.3.1 Path reservation case
C.3.2 Nonreservation case
C.4 User B busy again
C.4.1 At path reservation
C.4.2 At CC Call presentation without path reservation, without service retention
C.4.3 At CC Call presentation without path reservation, with service retention
Annex D(informative)Specification and Description Language (SDL)Representation of Procedures
D.1 Behaviour of the Originating PINX
D.2 Behaviour of the Terminating PINX
Annex E(informative)Bibliography
Annex F(normative)ASN.1 definitions according to ITU-T Recs. X.208 / X.209