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Migrating to CSTA Phase III

1st edition, June 2000

The purpose of this Technical Report is to aid the transition to CSTA Phase III by those who are already familiar with Phases I and II.

Phase III of CSTA extends the previous Phase II Standard in major theme directions as well as numerous details. Major areas of advancement include:

  • Additional services and events for call and device control.
  • Enhancement to existing services and events.
  • Organisation of services and events to reflect a grouping based on function (call control, device control, etc.).
  • Use of a consistent template for services and events that includes initial/final Connection State, connection state transitions, event monitoring sequences, etc.
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Technical CommitteeTC32