AudioCodes Mediant 2000, User Manual

Page: 298 / 418

SIP User's Manual 298 Document #: LTRT-68808
Mediant 2000
Parameter Description
Up to four emergency numbers can be defined, where each
number can be up to four digits.
Profile Parameters
CoderName
This
ini
file table parameter defines the device's coder list. This
includes up to five groups of coders (consisting of up to five
coders per group) that can be associated with IP or Tel profiles
('Coder Group Settings' page in the Web interface -- refer to
''Coder Group Settings'' on page
190 ). The first group of coders
(indices 0 through 4) is the default coder list and default coder
group. The format of this parameter is as follows:
[CoderName]
FORMAT CoderName_Index = CoderName_
Type
,
CoderName_
PacketInterval
, CoderName_
rate
,
CoderName_
PayloadType
, CoderName_
Sce
;
[\CoderName]
Where,
ƒ
Type = Coder name
ƒ
PacketInterval = Packetization time
ƒ
Rate = Packetization rate
ƒ
PayloadType = Payload type
ƒ
Sce = Silence suppression mode
For example:
[CoderName]
CoderName 0 = g711Alaw64k, 20,,,0;
CoderName 1 = g726, $$, 3, 38, 0;
CoderName 2 = g729, 40, 255, 255, 1;
[\CoderName]
Notes:
ƒ
This parameter can include up to 25 indices (i.e., five coders
per five coder groups).
ƒ
The coder name is case-sensitive.
ƒ
If silence suppression is not defined for a specific coder, the
value defined by the parameter EnableSilenceCompression is
used.
ƒ
The value of several fields is hard-coded according to common
standards (e.g., 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.
ƒ
Only the ptime of the first coder in the defined coder list is
declared in INVITE / 200 OK SDP, even if multiple coders are
defined.
ƒ
If the coder G.729 is selected and silence suppression is
enabled (for this coder), the device includes the string
'annexb=no' in the SDP of the relevant SIP messages. If
silence suppression is set to 'Enable w/o Adaptations',
'annexb=yes' is included. An exception is when the remote
device is a Cisco gateway (IsCiscoSCEMode).
ƒ
Both GSM-FR and MS-GSM coders use Payload Type 3.
When using SDP, it isn’t possible to differentiate between the