T.4 Timing Provider
The Multi-device Timing Community Group aims to facilitate multi-device timing connecting the TimingObject with an online timing resource, and encapsulating the complexity that arise from this. The concept of a Timing Provider Object is introduced to allow integration with third party timing providers.
A section of the timing object draft specification is concerned with Timing Provider Object
In addition, the timing provider API is documented at
Shared Motion by Motion Corporation is implements the timing provider API, and enables multi-device synchronization for timing objects.