Avaya IP phones support call quality monitoring. Enabling RTCP monitoring provides the system with measures of packet delay, packet loss and jitter. That information can be accessed using the System Status Application and System Monitor applications. The system can also be configured to output alarms when the call quality values exceed set levels.

The RTCP call quality reports can also be sent to the address of a third-party QoS monitoring application.

For IP Office Release 10.0 and higher, in addition to having the individual phones send RTCP call quality reports the system can also send RTCP reports for calls.