ECMA 299 : 2ED 2001

1 Scope
2 Conformance
3 References (normative)
4 Definitions
  4.1 External definitions
  4.2 Additional network feature (ANF)
  4.3 Original Call, Original Connection
  4.4 New Call, New Connection
  4.5 User A, Transferring User
  4.6 User B, Transferred User
  4.7 User C, Transferred-To User
5 List of acronyms
6 SS-SSCT stage 1 specification
  6.1 Description
      6.1.1 General description
      6.1.2 Qualifications on applicability to
             telecommunication services
  6.2 Procedure
      6.2.1 Provision/withdrawal
      6.2.2 Normal procedures
      6.2.3 Exceptional procedures
  6.3 Interaction with other supplementary services and
      ANFs
      6.3.1 Calling Line Identification Presentation
             (SS-CLIP)
      6.3.2 Connected Line Identification Presentation
             (SS-COLP)
      6.3.3 Calling/Connected Line Identification
             Restriction (SS-CLIR)
      6.3.4 Calling Name Identification Presentation
             (SS-CNIP)
      6.3.5 Calling Name Identification Restriction
             (SS-CNIR)
      6.3.6 Connected Name Identification Presentation
             (SS-CONP)
      6.3.7 Completion of Call to Busy Subscriber
             (SS-CCBS)
      6.3.8 Completion of Call on No Reply (SS-CCNR)
      6.3.9 Call Transfer (SS-CT)
      6.3.10 Call Forwarding Unconditional (SS-CFU)
      6.3.11 Call Forwarding Busy (SS-CFB)
      6.3.12 Call Forwarding No Reply (SS-CFNR)
      6.3.13 Call Deflection (SS-CD)
      6.3.14 Path Replacement (ANF-PR)
      6.3.15 Call Offer (SS-CO)
      6.3.16 Call Intrusion (SS-CI)
      6.3.17 Do not Disturb (SS-DND)
      6.3.18 Do not Disturb Override (SS-DNDO)
      6.3.19 Advice of Charge (SS-AOC)
      6.3.20 Recall (SS-RE)
      6.3.21 Call Interception (ANF-CINT)
      6.3.22 Transit Counter (ANF-TC)
      6.3.23 Route Restriction Class (ANF-RRC)
      6.3.24 Message Waiting Indication (SS-MWI)
      6.3.25 Wireless Terminal Location Registration
             (SS-WTLR)
      6.3.26 Wireless Terminal Incoming Call (ANF-WTMI)
      6.3.27 Wireless Terminal Outgoing Call (ANF-WTMO)
      6.3.28 Wireless Terminal Authentication of a CTM
             User (SS-WTAT)
      6.3.29 Wireless Terminal Authentication of the PISN
             (SS-WTAN)
      6.3.30 Private User Mobility Incoming Call (ANF-PUMI)
      6.3.31 Private User Mobility Outgoing Call (ANF-PUMO)
      6.3.32 Private User Mobility Registration (SS-PUMR)
      6.3.33 Common Information (ANF-CMN)
      6.3.34 Call Priority Interruption (Protection)
             (SS-CPI(P))
  6.4 Interworking considerations
      6.4.1 User B and/or User C in another network
      6.4.2 User A in another network
  6.5 Overall SDL
7 SS-SSCT stage 2 specification
  7.1 Functional model
      7.1.1 Functional model description
      7.1.2 Description of functional entities
      7.1.3 Relationship of functional model to Basic
             Call functional model
  7.2 Information flows
      7.2.1 Definition of information flows
      7.2.2 Examples of information flow sequences
  7.3 Functional Entity actions
      7.3.1 Functional Entity actions of FE1
      7.3.2 Functional Entity actions of FE2
      7.3.3 Functional Entity actions of FE3
      7.3.4 Functional Entity actions of FE4
      7.3.5 Functional Entity actions of FE5
      7.3.6 Functional Entity actions of FE6
      7.3.7 Functional Entity actions of FE7
  7.4 Functional Entity behaviour
      7.4.1 Behaviour of FE1
      7.4.2 Behaviour of FE2
      7.4.3 Behaviour of FE3
      7.4.4 Behaviour of FE4
      7.4.5 Behaviour of FE5
      7.4.6 Behaviour of FE6
      7.4.7 Behaviour of FE7
  7.5 Allocation of functional entities to physical
      locations
Annex A - Difference between Single Step Call Transfer
          and Call Transfer by Rerouting

The Supplementary Service (SS) Single Step Call Transfer (SSCT) which is applicable to various basic services supported by Private Integrated Services Networks (PISN), is specified in this Standard. Basic services are specified in ECMA 142. SS-SSCT is a supplementary service that enables an SSCT user, user A, to transform an existing call between user A and user B into a new call between user B and a user C whereby user A does not have a call established with user C prior to call transfer.