What is RTCP XR?
RTCP XR is a transport protocol primarily used within the Voice over IP family of protocols, which allow for voice communication via IP. It differs from RTCP in that it includes extended reports (XR), a type of RTCP packet which includes information on whether the RTP packet was received and provides receipt data to the sender.
How Does RTCP XR Work?
XR packets provide additional information and can be combined with standard RTCP packets and sent together in compound packets. XR packets communicate more information, but increase the size of a packet and take longer to transmit.