User ID of the user sending the audio streams.

Audio quality received by the user:

• QUALITY_UNKNOWN(0): The quality is unknown.
• QUALITY_EXCELLENT(1): The quality is excellent.
• QUALITY_GOOD(2): The quality is quite good, but the bitrate may be slightly lower than excellent.
• QUALITY_POOR(3): Users can feel the communication slightly impaired.
• QUALITY_BAD(4): Users can communicate not very smoothly.
• QUALITY_VBAD(5): The quality is so bad that users can barely communicate.
• QUALITY_DOWN(6): The network is disconnected and users cannot communicate at all.

Network delay from the sender to the receiver.

Jitter buffer delay at the receiver.

Packet loss rate in the reported interval.