H3C Technologies H3C MSR 50 User Manual
Page 620
235
Table 219 G.711 algorithm (A-law and μ-law)
Packet
assembly
interval
Bytes coded
in a time unit
Packet
length (IP)
(bytes)
Network
bandwidth
(IP)
Packet length
(IP+PPP)
(bytes)
Network
bandwidth
(IP+PPP)
Coding
latency
10 ms
80
120
96 kbps
126
100.8 kbps
10 ms
20 ms
160
200
80 kbps
206
82.4 kbps
20 ms
30 ms
240
280
74.7 kbps
286
76.3 kbps
30 ms
G.711 algorithm (A-law and μ-law): media stream bandwidth 64 kbps, minimum packet assembly interval 10
ms.
Table 220 G.723 r63 algorithm
Packet
assembly
interval
Bytes
coded in a
time unit
Packet
length (IP)
(bytes)
Network
bandwidth
(IP)
Packet length
(IP+PPP)
(bytes)
Network
bandwidth
(IP+PPP)
Coding
latency
30 ms
24
64
16.8 kbps
70
18.4 kbps
30 ms
60 ms
48
88
11.6 kbps
94
12.3 kbps
60 ms
90 ms
72
112
9.8 kbps
118
10.3 kbps
90 ms
120 ms
96
136
9.1 kbps
142
9.5 kbps
120 ms
150
ms
120 160 8.5
kbps
166
8.9
kbps
150
ms
180
ms
144 184 8.2
kbps
190
8.4
kbps
180
ms
G.723 r63 algorithm: media stream bandwidth 6.3 kbps, minimum packet assembly interval 30 ms.
Table 221 G.723 r53 algorithm
Packet
assembly
interval
Bytes coded
in a time
unit
Packet
length (IP)
(bytes)
Network
bandwidth
(IP)
Packet length
(IP+PPP)
(bytes)
Network
bandwidth
(IP+PPP)
Coding
latency
30 ms
20
60
15.9 kbps
66
17.5 kbps
30 ms
60 ms
40
80
10.6 kbps
86
11.4 kbps
60 ms
90 ms
60
100
8.8 kbps
106
9.3 kbps
90 ms
120 ms
80
120
8 kbps
126
8.4 kbps
120 ms
150 ms
100
140
7.5 kbps
146
7.8 kbps
150 ms
180 ms
120
160
7.1 kbps
166
7.4 kbps
180 ms
G.723 r53 algorithm: media stream bandwidth 5.3 kbps, minimum packet assembly interval 30 ms.
Table 222 G.726 r16 algorithm
Packet
assembly
interval
Bytes coded
in a time
unit
Packet
length (IP)
(bytes)
Network
bandwidth
(IP)
Packet length
(IP+PPP)
(bytes)
Network
bandwidth
(IP+PPP)
Coding
latency
10 ms
20
60
48 kbps
66
52.8 kbps
10 ms
20 ms
40
80
32 kbps
86
34.4 kbps
20 ms