Nortel Meridian ITG Line 2.0 Description, Installation And Operation Manual page 80

Page 80 of 302 IP Network engineering guidelines
Table 13
ITG QOS levels (Part 4 of 4)
Packet One-way
loss (%) delay (ms)
10 270-280
11 50-250
11 260-270
12 50-230
12 240-260
13 50-230
13 240-250
14 50-210
14 220-230
15 50-190
15 200-230
16 50-160
16 170-210
Note: The QOS levels are equivalent to the following MOS values:
• excellent 5
• good 4
• fair 3
• poor 2
553-3001-204 Preliminary 0.10 August 2000
G.729A
fair
fair
fair
fair
fair
fair
fair
fair
fair
fair
fair
fair
fair
QOS level
G.711A/G.711u
fair
fair
fair
fair
fair
fair
fair
fair
fair
fair
fair
fair
fair
G.723.1
poor
fair
poor
fair
poor
fair
poor
fair
poor
fair
poor
fair
poor