ECMA 174 : 3ED 2001

1 Scope
2 Conformance
3 References (normative)
4 Definitions
  4.1 External definitions
  4.2 Other definitions
      4.2.1 Activating PINX
      4.2.2 Busy
      4.2.3 Connected number
      4.2.4 Deactivating PINX
      4.2.5 Diversion
      4.2.6 Diverted-to number
      4.2.7 Diverted-to PINX
      4.2.8 Diverted-to user
      4.2.9 Diverting cause
      4.2.10 Diverting number
      4.2.11 Forwarding
      4.2.12 Forward switching
      4.2.13 Interrogating PINX
      4.2.14 Last diverting user
      4.2.15 Original called number
      4.2.16 Original called user
      4.2.17 Partial rerouteing
      4.2.18 Presentation indicator
      4.2.19 Rerouteing
      4.2.20 Rerouteing PINX
      4.2.21 Served user
      4.2.22 User A
      4.2.23 User B
      4.2.24 User B1, user B2, user B3, etc.
      4.2.25 User C
5 Acronyms
6 Signalling protocol for the support of SS-DIV
  6.1 SS-DIV description
  6.2 SS-DIV operational requirements
      6.2.1 Provision/withdrawal
      6.2.2 Requirements on the Originating PINX
      6.2.3 Requirements on the Served User PINX
      6.2.4 Requirements on the Diverted-to PINX
      6.2.5 Requirements on the Rerouteing PINX
      6.2.6 Requirements on a Transit PINX
      6.2.7 Requirements on the Activating PINX
      6.2.8 Requirements on the Deactivating PINX
      6.2.9 Requirements on the Interrogating PINX
  6.3 SS-DIV coding requirements
      6.3.1 Operations
      6.3.2 Information elements
      6.3.3 Messages
  6.4 SS-DIV state definitions
      6.4.1 States at the Originating PINX
      6.4.2 States at the Served User PINX
      6.4.3 States at the Diverted-to PINX
      6.4.4 States at the Rerouteing PINX
      6.4.5 States at the Activating PINX
      6.4.6 States at the Deactivating PINX
      6.4.7 States at the Interrogating PINX
  6.5 SS-DIV Signalling procedures
      6.5.1 Actions at the Originating PINX
      6.5.2 Actions at a Transit PINX
      6.5.3 Actions at the Served User PINX
      6.5.4 Actions at the Rerouteing PINX
      6.5.5 Actions at the Diverted-to PINX
      6.5.6 Actions at the Activating PINX
      6.5.7 Actions at the Deactivating PINX
      6.5.8 Actions at the Interrogating PINX
  6.6 SS-DIV Impact of interworking with public ISDNs
      6.6.1 Impact of interworking on incoming calls
      6.6.2 Impact of interworking on outgoing calls
  6.7 SS-DIV Impact of interworking with non-ISDNs
      6.7.1 Impact of interworking on incoming calls
      6.7.2 Impact of interworking on outgoing calls
  6.8 Protocol interactions between SS-DIV and other SSs
      and ANFs
      6.8.1 Protocol interactions of Call Forwarding
             Unconditional (SS-CFU)
      6.8.2 Protocol interactions of Call Forwarding Busy
             (SS-CFB)
      6.8.3 Protocol interactions of Call Forwarding No Reply
             (SS-CFNR)
      6.8.4 Protocol interactions of Call Deflection (SS-CD)
  6.9 SS-DIV parameter values (timers)
      6.9.1 Timer T1
      6.9.2 Timer T2
      6.9.3 Timer T3
      6.9.4 Timer T4
      6.9.5 Timer T5
Annex A - Protocol Implementation Conformance Statement (PICS)
          proforma
Annex B - Imported ASN.1 definitions
Annex C - Specification and Description Language (SDL)
          representation of procedures
Annex D - Examples of message sequences
Annex E - Bibliography
Annex F - ASN.1 definitions according to ITU-T Recs. X.208/X.209

Defines signalling protocol for supporting Call Diversion supplementary services (SS-DIV) at the Q reference point between Private Integrated Services Network Exchanges (PINXs) connected within a Private Integrated Services Network (PISN).