Multicast media notification for queued calls

摘要

Multicast media notifications are provided when unicast media encoders are unavailable to serve endpoints that send a communication session request to a call control device. When the call control device receives a communication session request from an endpoint, a determination is made as to whether any one of a plurality of unicast media encoders is available for the communication session request. When it is determined that none of the plurality of unicast media encoders is available, the endpoint is connected to a multicast media encoder that presents a multicast media notification to the endpoint. The multicast media encoder generates a video keyframe associated with the multicast media notification, synchronizes the video keyframe to a starting point of audio, and outputs the synchronized video keyframe.

主权项

1. A method comprising:
receiving at a call control device a communication session request from an endpoint; determining whether any one of a plurality of unicast media encoders is available for the communication session request; when it is determined that none of the plurality of unicast media encoders is available, connecting the endpoint to a multicast media encoder in the call control device, wherein the multicast media encoder is configured to generate a multicast media notification; presenting the multicast media notification to the endpoint; generating from the multicast media encoder a video keyframe associated with the multicast media notification, and synchronizing the video keyframe to a starting point of an audio portion of the multicast media notification; and outputting the synchronized video keyframe from the multicast media encoder.