HTTP Protocols


The following table describes protocols used by clients to communicate with communication server components using HTTP to consume real time communication services for signaling.

Protocol name


Short name

Microsoft Online Conference Scheduling and Management Protocol

Describes the protocol used to communicate with Unified Communications Web API components of the Lync Server to enumerate, create, delete, and edit scheduled online conferences hosted by the Lync Server.


Lync Autodiscover Web Service Protocol

Describes the protocol used to determine where to access specific Lync resources, including Lync web services and SIP entry points.


Unified Communications Call Via Work Protocol

Specifies the protocol that defines how an application can create a PSTN phone call between a desktop or mobile phone and a remote party.


Unified Communications Event Channel Protocol

Specifies the protocol that describes a mechanism that web applications can use to retrieve notifications about changes to resources.