Vocoder filter attributes

The following table shows MSPP encoder/decoder filter attributes:

Vocoder

Literal

(RFC 1890 compliant)

Data rate

(kbit/s)

VAD

Sample rate

Static payload ID

(RFC 1890 compliant)

Dialogic default payload ID

Media packet latency

Payload size (bytes)

RTP timestamp increments

mu-law PCM

PCMU

64

Yes

8000

0

0

10

80

80

G.726
(at 32 kbit/s)

G726_2

32

No

8000

2

2

10

40

80

G.723.1

G723

6.4/5.3

(default=6.4)

Yes

8000

4

4

30

24, 20 (4)

240

A-law PCM

PCMA

64

Yes

8000

8

8

10

80

80

G.729A

G729

8.0

Yes

8000

18

18

10

10 (2)

80