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Mediant 2000 SIP
Mediant 2000 SIP User’s Manual 104 Document #: LTRT-72504
Table 6-3: SIP Configuration Parameters (continues on pages 100 to 110)
ini File Field Name
Web Parameter Name
*
Valid Range and Description
CoderName
[Coders]
CoderName = Coder,ptime (can appear up to 5 times)
The following coder names can be selected:
g711Alaw64k – G.711 A-law.
g711Ulaw64k – G.711 µ-law.
g7231 – G.723.1 6.3 kbps (default).
g7231r53 – G.723 5.3 kbps.
g726 – G.726 ADPCM 32 kbps (Payload Type = 2).
g729 – G.729A.
NetCoder6_4 – NetCoder 6.4 kbps.
NetCoder7_2 – NetCoder 7.2 kbps.
NetCoder8 – NetCoder 8.0 kbps.
NetCoder8_8 – NetCoder 8.8 kbps.
Transparent – Transparent coder.
Evrc – EVRC coder.
Amr – AMR coder.
Note: The coder name is case-sensitive.
The RTP packetization period (ptime, in msec) depends on the selected Coder name,
and can have the following values:
g711 family – 10,20,30,40,50,60,80,100,120 (default=20).
g729 – 10,20,30,40,50,60,80,100 (default=20).
g723 family – 30,60,90,120 (default = 30).
G.726 – 10, 20, 40, 60, 80, 100, 120 (default=20).
NetCoder family – 20, 40, 60, 80, 100, 120 (default=20).
EVRC – 20, 40, 60, 80, 100 (default=20).
AMR – 20 only.
Transparent - 20, 40, 60, 80, 100, 120 (default=20)
Note 1: If not specified, the ptime gets a default value.
Note 2: Each coder should appear only once.
Note 3: The ptime specifies the maximum packetization time the gateway can receive.
Note 4: G.729B is supported if the coder G.729 is selected and
‘EnableSilenceCompression’ equals 1 or 2.
Note 5: The selected rate of the AMR coder is set according to the parameter
‘AMRSendRate’. The selected rate of the EVRC coder is set according to the
parameter ‘EVRCRate’.
Note 6: The AMR coder is enabled only if ‘DSPVersionTemplateNumber = 1’. When
this DSP template is selected, the maximum number of channels is 160 instead of 240
(rounded to full E1/T1 trunk capacity 30/24 channels per trunk).
Note 7: The EVRC coder is enabled only if ‘DSPVersionTemplateNumber = 2’. When
this DSP template is selected, the maximum number of channels is 120 instead of 240
(rounded to full E1/T1 trunk capacity 30/24 channels per trunk). Note that the value of
the parameter ‘EnableRFC2658Interleaving’ must be identical on both sides of the call.
For example:
CoderName = g711Alaw64k,20
CoderName = g711Ulaw64k,40
CoderName = g7231,90
AMRPayloadType
Determines the payload type that is used when the selected coder is set to one of the
AMR coder variants.
The valid range is 0 to 120. The default value is 64.