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378
ITG Engineering Guidelines
553-3001-202 Standard 1.00 April 2000
Packet
loss (%)
One-way
delay (ms)
QoS level
G.729A G.711A/G.711u G.723.1
10 270-280 fair fair poor
11 50-250 fair fair fair
11 260-270 fair fair poor
12 50-230 fair fair fair
12 240-260 fair fair poor
13 50-230 fair fair fair
13 240-250 fair fair poor
14 50-210 fair fair fair
14 220-230 fair fair poor
15 50-190 fair fair fair
15 200-230 fair fair poor
16 50-160 fair fair fair
16 170-210 fair fair poor
Table 24
ITG QoS levels (Part 4 of 4)
Note:
The QoS levels are equivalent to the following MOS values: (See page 56 for more details)
• excellent 5
•good 4
•fair 3
•poor 2