Polycom officially supports Device Feature Key Synchronization signaling in order to set a server based Do Not Disturb or Call Forwarding status.
A document detailing this functionality has been made available by our Partner Broadsoft and is attached => here <=
A post discussing this functionality can be found => here <=
NOTE: It is important to understand that Polycom only discloses above mentioned functionality and any additional other solutions are under a Non-disclosure agreement.
The described and supported solution works via SUBSCRIBE and NOTIFY
If official support is required please check how to phone or open a case here
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