1
Scope
2 References
3 Terms and definitions
4 Abbreviations and acronyms
5 Description
5.1 Call Park
5.2 Call Pickup
6 Messages and information elements
7 Procedures
7.1 Actions at the Parking Endpoint A
7.2 Actions at the Parked Endpoint B
7.3 Actions at the Parked-To Endpoint
7.4 Actions at the Calling endpoint
(SS-PICKUP of an alerting call)
7.5 Actions at the Alerting endpoint
(SS-PICKUP of an alerting call)
7.6 Actions at the Served endpoint
7.7 Actions at a Pickup Group member
endpoint
7.8 Actions at the Picking-up Endpoint
7.9 Alternative procedures
7.9.1 Local SS-PARK and pickup from local park
8 Interworking
8.1 Interworking with SCN
8.2 Interworking with other
supplementary services
8.2.1 Call Diversion (H.450.3)
8.2.2 Call Hold (H.450.4)
8.2.3 Call Waiting (H.450.6)
8.2.4 H.323 Conference
8.2.5 Call Transfer (H.450.2)
8.3 Interaction with H.225.0
parameters
9 Gatekeeper actions
9.1 Normal procedures
9.2 Alternative GK procedures for
SS-PICKUP of an Alerting call
9.2.1 Alerting endpoint does not support SS-PICKUP
9.2.2 Calling endpoint and Alerting endpoint do not support SS-PICKUP
9.2.3 Group pickup of an alerting call
at the gatekeeper
9.3 Alternative GK procedures for
SS-PARK and SS-PICKUP of a parked call
10 Dynamic description
10.1 Operational model and signal flows
10.1.1 SS-PARK
10.1.2 SS-PICKUP of a parked call, unpark
10.1.3 SS-PICKUP of an alerting call
10.2 Communication between a Signalling
entity and its Signalling entity user (Primitives and Parameters)
10.2.1 Parking endpoint
10.2.2 Parked endpoint
10.2.3 Parked-To endpoint
10.2.4 Picking-up endpoint
10.2.5 Calling endpoint
10.2.6 Alerting endpoint
10.2.7 Served endpoint
10.2.8 Group Member endpoint
10.3 Call States
10.3.1 Parking Endpoint A
10.3.2 Parked Endpoint B
10.3.3 Parked-To Endpoint (Parking Position)
10.3.4 Calling endpoint
10.3.5 Alerting endpoint
10.3.6 Served endpoint
10.3.7 Group member endpoint
10.3.8 Picking-up Endpoint
10.4 Timers
11 Operation in Support of SS-PARK and SS-PICKUP
12 Specification and Description Language (SDL) Diagrams
12.1 SS-PARK SDLs
12.2 SS-PICKUP SDLs
12.3 SS-PARK, SS-PICKUP Group
notifications SDLs