4 Terminal portability (TP)
4.1 Scope
4.2 References
4.3 Definitions
4.4 Abbreviations
4.5 Description
4.6 Operational requirements
4.6.1 Provision/withdrawal
4.6.2 Requirements on the originating network
side
4.6.3 Requirements on the destination network
side
4.7 Coding requirements
4.8 State definitions
4.9 Signalling procedures at the coincident S and T reference
point
4.9.1 Invocation and operation
4.10 Procedures for interworking with private ISDNs
4.11 Interaction with other networks
4.11.1 Interactions with non-ISDNs
4.12 Interaction with other supplementary services
4.12.1 Call Waiting
4.12.2 Explicit Call Transfer
4.12.3 Connected Line Identification
Presentation
4.12.4
Connected Line Identification Restriction
4.12.5 Calling Line Identification Presentation
4.12.6 Calling Line Identification Restriction
4.12.7 Closed User Group
4.12.8 Conference Calling
4.12.9 Direct-Dialling-In
4.12.10 Call Diversion (Call Forwarding) services
4.12.11 Line Hunting
4.12.12 Three-Party service
4.12.13 User-to-User Signalling
4.12.14 Multiple Subscriber Number
4.12.15 Call Hold
4.12.16 Advice Of Charge
4.12.17 Sub-addressing
4.12.18 Terminal Portability
4.12.19 Completion of Calls to Busy Subscriber
4.12.20 Malicious Call Identification
4.12.21 Reverse Charging
4.12.22 Multi-level Precedence and Preemption
4.12.23
Support of Private Numbering Plans
4.12.24 International Telecommunication Charge
Card
4.12.25 Global virtual network services
4.13 Parameter values (timers)
4.14 Dynamic description (SDLs)
Appendix I – Signalling flows