User`s manual

SIP User's Manual 5. Web Management
Version 5.0 73 December 2006
Table 5-5: Supported Coders and their Attributes
Coder Name Packetization Time Rate
Payload
Type
Silence
Suppression
G.711 A-law
[g711Alaw64k]
10, 20 (default), 30, 40, 50,
60, 80, 100, 120
Always 64 Always 8
Disable
[0]
Enable
[1]
G.711 µ-law
[g711Ulaw64k]
10, 20 (default), 30, 40, 50,
60, 80, 100, 120
Always 64 Always 0
Disable
[0]
Enable
[1]
G.729
[g729]
10, 20 (default), 30, 40, 50,
60
Always 8 Always 18
Disable
[0]
Enable
[1]
Enable w/o Adaptations
[2]
G.723.1
[g7231]
30 (default), 60, 90
5.3
[0], 6.3 [1]
(default)
Always 4
Disable [0]
Enable
[1]
G.726
[g726]
10, 20 (default), 30, 40, 50,
60, 80, 100, 120
16 [0], 24 [1],
32 [2] (default),
40 [3]
Dynamic (0-
120)
Disable [0]
Enable
[1]
T.38
[t38fax]
N/A N/A N/A N/A
G.711A-law_VBD
[g711AlawVbd]
10, 20 (default), 30, 40, 50, 60,
80, 100, 120
Always 64 Dynamic (0-
120)
N/A
G.711U-law_VBD
[g711UlawVbd]
10, 20 (default), 30, 40, 50, 60,
80, 100, 120
Always 64 Dynamic (0-
120)
N/A
Transparent
N/A.
Table 5-6: ini File Coder Parameter
Parameter Description
CoderName
Defines the gateway’s coder list (up to five coders can be configured).
Enter coders in the following format:
CoderName=<Coder Name>,<Ptime>,<Rate>,<Payload Type>,<Silence
Suppression Mode>.
Note 1: The coder name is case-sensitive.
Note 2: If silence suppression is not defined (for a specific coder), the value
defined by the parameter EnableSilenceCompression is used.
Note 3: The value of several fields is hard-coded according to well-known
standards (e.g., the payload type of G.711 U-law is always 0). Other values can be
set dynamically. If no value is specified for a dynamic field, a default value is
assigned. If a value is specified for a hard-coded field, the value is ignored.
For example:
CoderName = g711Alaw64k,20,,,0
CoderName = g711Ulaw64k,40
CoderName = g7231,90,1,,1
CoderName = g726,$$,$$,,0
Notes: For an explanation on V.152 support (and implementation of T.38 and
VBD coders), refer to Section 8.3.5 on page 222.