Cisco 7906G Administration Guide - Page 195

G.729 A /AB gives 3.8, Description

Page 195 highlights

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 Lowest MOS LQK score observed from start of the voice stream. LQK Max MOS Baseline or highest MOS LQK score observed from start of the LQK 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 3.8 • G.728/iLBC gives 3.9 MOS LQK Version of the Cisco proprietary algorithm used to calculate MOS Version LQK scores. Cumulativ Total number of concealment frames divided by total number of e Conceal speech frames received from start of the voice stream. Ratio 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. OL-14585-01 Cisco Unified IP Phone 7906G and 7911G for Cisco Unified Communications Manager 6.1 7-19

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7-19
Cisco Unified IP Phone 7906G and 7911G for Cisco Unified Communications Manager 6.1
OL-14585-01
Chapter 7
Viewing Model Information, Status, and Statistics on the Cisco Unified IP Phone
Status Menu
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 3.8
G.728/iLBC gives 3.9
MOS LQK
Version
Version of the Cisco proprietary algorithm used to calculate MOS
LQK scores.
Cumulativ
e Conceal
Ratio
Total number of concealment frames divided by total 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.
Table 7-6
Call Statistics Items (continued)
Item
Description