Platform prerequisites
Microsoft’s current application-hosted media guidance requires C#/.NET withMicrosoft.Graph.Communications.Calls.Media and Windows Server hosting in Azure for production. It does not support this media path as a Node.js API or an Azure web app. The documented platform remains subject to preview requirements.
Identify the tenant and application registration owners, hosting team, selected calling scenario, and permissions it needs. A chat bot registration alone does not establish real-time media support.
Prepare the implementation review
1
Review permissions and terms
Map the intended call or meeting operations to the necessary Microsoft permissions and administrator consent. Review the cloud communications guidance and applicable media-use terms before planning persistence of audio or derived content.
2
Design the media host
Use Microsoft’s supported hosting and networking requirements. Plan per-instance media reachability and capacity. Keep the media library within its supported update window.
3
Handle instance lifecycle
Media calls remain attached to the instance that accepted or created them. Plan admission limits, deployment draining, and caller-visible failure behavior; stopping that instance can terminate active calls.
4
Define the Threetone adapter
Specify the released agent session contract, audio conversion, interruption behavior, and teardown. None of these is supplied merely by creating a Graph application registration.
Failure handling
Distinguish permission rejection, call-control errors, inaccessible media ports, and overloaded instances. Correlate Graph call identifiers with the media host and future agent session. Keep the existing human call path available during evaluation. Before rollout, demonstrate invitation or joining behavior, two-way media, hangup, capacity limits, and host replacement with authorized test participants. Do not assume a generic messaging-bot emulator proves media behavior.Frequently asked questions
Can I host this in my existing JavaScript web app?
Can I host this in my existing JavaScript web app?
Not as the application-hosted media service described here. Follow Microsoft’s C#/.NET and Windows Server requirements for that component.
Does Graph registration enable Threetone meeting access?
Does Graph registration enable Threetone meeting access?
No. Tenant authorization, the media service, and a supported Threetone adapter are separate release requirements.