The User Capabilities Exchange (UCE) protocol is a standard proposed by the International Telecommunication Union (ITU) under the reference A.63. It is used to facilitate the exchange of information between two communication endpoints to establish a communication session.
In simple terms, UCE enables two communicating endpoints to exchange information about their capabilities before establishing a communication session. This information includes various parameters such as audio and video codecs, frame rate, resolution, and other relevant settings required to establish a successful session.
The UCE protocol allows endpoints to negotiate various session parameters based on their capabilities. For instance, if one endpoint has a low bandwidth connection, it may not support high-definition video streams. The protocol enables the endpoint to inform the other endpoint about its capabilities so that they can negotiate and agree on appropriate parameters that both can support.
The UCE protocol typically runs in the signaling layer of a communication network and is responsible for exchanging capabilities between endpoints during the signaling phase of a session. It uses Session Description Protocol (SDP) to describe and exchange the capabilities of the endpoints.
In summary, the User Capabilities Exchange protocol (UCE) provides a standard mechanism for communication endpoints to exchange information about their capabilities, enabling them to negotiate and establish successful communication sessions.
沒有留言:
張貼留言