Cisco Systems 7971G-GE manual Status Menu

Chapter 7 Viewing Model Information, Status, and Statistics on the Cisco Unified IP Phone

		Status Menu
Table 7-6	Call Statistics Items (continued)
Item		Description
Min MOS LQK		Lowest MOS LQK score observed from start of the
		voice stream.
Max MOS LQK		Baseline or highest MOS LQK score observed from
		start of the voice stream.
		These codecs provide the following maximum MOS
		LQK score under normal conditions with no frame
		loss:
		• G.711 gives 4.5
		• G.729 A /AB gives 3.7
MOS LQK Version		Version of the Cisco proprietary algorithm used to
		calculate MOS LQK scores.
Cumulative Conceal		Total number of concealment frames divided by total
Ratio		number of speech frames received from start of the
		voice stream.
Interval Conceal Ratio		Ratio of concealment frames to speech frames in
		preceding 3-second interval of active speech. If
		using voice activity detection (VAD), a longer
		interval might be required to accumulate 3 seconds
		of active speech.
Max Conceal Ratio		Highest interval concealment ratio from start of the
		voice stream.
Conceal Secs		Number of seconds that have concealment events
		(lost frames) from the start of the voice stream
		(includes severely concealed seconds).
Severely Conceal Secs		Number of seconds that have more than 5 percent
		concealment events (lost frames) from the start of
		the voice stream.

	Cisco Unified IP Phone 7970G/7971G-GE for Cisco Unified Communications Manager 6.0
OL-12232-01		7-21