RTP Control Protocol (RTCP) – the optional companion to
RTCP enables administrators to monitor the quality of a call session by trackingjitter, and other key VoIP concerns. This information is provided on a periodic basis to both ends and is processed per call by the media gateways.
Some gateway devices might not employ RTCP because the facility to report such information is not applicable to the end user. For example, a single residential user (with an analog phone) might not have access to the gateway providing the service. Also, the media gateway vendor can use a more scalable approach of tracking call quality statistics. In this case, the storage, transport and presentation of statistical info are device dependent.
If using RTCP (or a vendor-specific implementation) in the network, the organization needs to take into account