A method, comprising: transmitting a Real-time Transport Protocol, RTP, media stream from a source endpoint to a destination endpoint in a packet network; monitoring, at a network node located between the source endpoint and the destination endpoint, a selected segment of the RTP media stream between, and excluding, the source endpoint and the destination endpoint, wherein monitoring the selected segment does not interfere with monitoring the RTP media stream from the source endpoint to the destination endpoint; transmitting and receiving, at the network node, segment control messages associated with the selected RTP media stream segment, the segment control messages including a set of call quality metrics related to the selected segment of the RTP media stream; transmitting and receiving, at the network node, an end-to-end Real-time Transport Control Protocol, RTCP, control message, the end-to-end RTCP control message including a set of call quality metrics related to the RTP media stream from the source endpoint to the destination endpoint; and wherein the monitoring of the selected segment includes: receiving a control message associated with the transmitted RTP media stream; identifying the received control message according to a packet type identifier; processing the received control message at the network node to generate media statistics for the selected segment if the packet type identifier of the control message is associated with the selected RTP stream segment; and forwarding the received control message out of the network node to the destination endpoint if the packet type identifier of the control message is associated with the end-to-end RTCP control message. transmitting a Real-time Transport Protocol, RTP, media stream from a source endpoint to a destination endpoint in a packet network; monitoring, at a network node located between the source endpoint and the destination endpoint, a selected segment of the RTP media stream between, and excluding, the source endpoint and the destination endpoint, wherein monitoring the selected segment does not interfere with monitoring the RTP media stream from the source endpoint to the destination endpoint; transmitting and receiving, at the network node, segment control messages associated with the selected RTP media stream segment, the segment control messages including a set of call quality metrics related to the selected segment of the RTP media stream; transmitting and receiving, at the network node, an end-to-end Real-time Transport Control Protocol, RTCP, control message, the end-to-end RTCP control message including a set of call quality metrics related to the RTP media stream from the source endpoint to the destination endpoint; and wherein the monitoring of the selected segment includes: receiving a control message associated with the transmitted RTP media stream; identifying the received control message according to a packet type identifier; processing the received control message at the network node to generate media statistics for the selected segment if the packet type identifier of the control message is associated with the selected RTP stream segment; and forwarding the received control message out of the network node to the destination endpoint if the packet type identifier of the control message is associated with the end-to-end RTCP control message. receiving a control message associated with the transmitted RTP media stream; identifying the received control message according to a packet type identifier; processing the received control message at the network node to generate media statistics for the selected segment if the packet type identifier of the control message is associated with the selected RTP stream segment; and forwarding the received control message out of the network node to the destination endpoint if the packet type identifier of the control message is associated with the end-to-end RTCP control message.