2561

Table 665 G.711 algorithm (A-law and µ-law)

 

 

 

 

 

 

 

 

 

 

 

 

Packet

 

Packet

 

 

Packet

Bytes

length

Network

length

Network

 

assembly

coded in a

(bytes)

bandwidth

(bytes)IP+

bandwidth

Coding

interval

time unit

IP

IP

PPP

IP+PPP

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 64kbps, minimum packet

assembly interval 10 ms.

 

 

 

 

 

 

 

 

 

 

Table 666 G.723 r63 algorithm

 

 

 

 

 

 

 

 

 

 

 

 

 

Packet

 

Packet

 

 

Packet

Bytes

length

Network

length

Network

 

assembly

coded in a

(bytes)

bandwidth

(bytes)IP+

bandwidth

Coding

interval

time unit

IP

IP

PPP

IP+PPP

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

G.723 r63 algorithm: media stream bandwidth 6.3 kbps, minimum packet assembly interval 30 ms.

Table 667 G.723 r53 algorithm

 

 

Packet

 

Packet

Network

 

Packet

Bytes

length

Network

length

 

assembly

coded in a

(bytes)

bandwidth

(bytes)

bandwidth

Coding

interval

time unit

IP

IP

IP+PPP

IP+PPP

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

G.723 r53 algorithm: media stream bandwidth 5.3 kbps, minimum packet assembly interval 30 ms.

Table 668 G.726 r16 algorithm

 

 

Packet

 

Packet

 

 

Packet

Bytes

length

Network

length

Network

 

assembly

coded in a

(bytes)

bandwidth

(bytes)

bandwidth

Coding

interval

time unit

IP

IP

IP+PPP

IP+PPP

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

 

 

 

 

 

 

 

30 ms

60

100

26.7 kbps

106

28.3 kbps

30 ms

 

 

 

 

 

 

 

40 ms

80

120

24 kbps

126

25.2 kbps

40 ms

 

 

 

 

 

 

 

50 ms

100

140

22.4 kbps

146

23.4 kbps

50 ms

 

 

 

 

 

 

 

60 ms

120

160

21.3 kbps

166

11.4 kbps

60 ms

 

 

 

 

 

 

 

70 ms

140

180

20.6 kbps

186

21.3 kbps

70 ms

 

 

 

 

 

 

 

80 ms

160

200

20 kbps

206

20.6 kbps

80 ms

 

 

 

 

 

 

 

90 ms

180

220

8.8 kbps

226

9.3 kbps

90 ms

100 ms

200

240

19.2 kbps

246

19.7 kbps

100 ms

Page 2561
Image 2561
3Com MSR 50, MSR 30 manual algorithm A-law and µ-law, 723 r63 algorithm, 723 r53 algorithm, 726 r16 algorithm