Compressed Audio Quality Under Packet Loss Conditions - Nortel Remote Gateway 9110 Reference Manual

Standard 1.6
Compressed audio quality under packet loss
conditions
The following graph shows the effect of random packet loss on the Remote
Gateway 9100 Series G.711 Codecs.
100
90
80
70
60
50
0
Note: T is one-way delay in ms.
Remote Gateway 9100 Series Network Engineering Guidelines
G.711 w ith Random Packet Loss
100 200
T
User Satisfaction
Very
satisfactory
Satisfactory
Some users
dissatisfied
Many users
dissatisfied
Exceptional
limiting case
300 400
June 2005
0
0.01
0.02
0.03
0.04
0.05
500
11