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Mediant 2000 SIP User’s Manual 6. ini File Configuration of the Mediant 2000
Version 4.4 129 July 2005
Table 6-7: Channel Parameters (continues on pages 128 to 131)
ini File Field Name
Web Parameter Name
*
Valid Range and Description
CNGDetectorMode
[CNG Detector Mode]
0 = Disable (default).
1 = Event Only (N/A).
2 = Relay. T.38 fax relay session is initiated by the originating fax if ‘IsFaxUsed =
1’. Note that using this mode isn’t recommended.
FaxModemBypassM
[Fax/Modem Bypass Packing Factor]
Number of (20 msec) coder payloads that are used to generate a fax/modem
bypass packet.
You can enter a value of 1, 2 or 3 coder payloads.
The default value is 1 coder payload.
FaxBypassPayloadType
[Fax Bypass Payload Type]
Determines the fax bypass RTP dynamic payload type.
The valid range is 96 to 120. The default value is 102.
ModemBypassPayloadType
Modem Bypass dynamic payload type (range 0-127).
The default value is 103.
DetFaxOnAnswerTone
[Detect Fax on Answer Tone]
0 = Starts T.38 procedure on detection of V.21 preamble (default).
1 = Starts T.38 Procedure on detection of CED fax answering tone.
FaxModemBypassBasicRTPPacket
Interval
0 = set internally (default)
1 = 5 msec (not recommended)
2 = 10 msec
3 = 20 msec
FaxModemBypassDJBufMinDelay
0 to 150 msec (default=40)
Determines the Jitter Buffer delay during fax and modem bypass session
NSEMode
Cisco compatible fax and modem bypass mode
0 = NSE disabled (default)
1 = NSE enabled
Note 1: This feature can be used only if VxxModemTransportType=2 (Bypass)
Note 2: If NSE mode is enabled the SDP contains the following line:
“a=rtpmap:100 X-NSE/8000”
Note 3: To use this feature:
• The Cisco gateway must include the following definition: "modem
passthrough nse payload-type 100 codec g711alaw".
• Set the Modem transport type to Bypass mode (‘VxxModemTransportType
= 2’) for all modems.
• Configure the gateway parameter NSEPayloadType= 100
In NSE bypass mode the gateway starts using G.711 A-Law (default) or G.711µ-
Law, according to the parameter ‘FaxModemBypassCoderType’. The payload
type used with these G.711 coders is a standard one (8 for G.711 A-Law and 0
for G.711 µ-Law). The parameters defining payload type for the “old”
AudioCodes’ Bypass mode. ‘FaxBypassPayloadType’ and
‘ModemBypassPayloadType’ are not used with NSE Bypass. The bypass packet
interval is selected according to the parameter
‘FaxModemBypassBasicRtpPacketInterval’.
NSEPayloadType
NSE payload type for Cisco Bypass compatible mode.
The valid range is 96-127. The default value is 105.
Note: Cisco gateways usually use NSE payload type of 100.
V22ModemTransportType
[V.22 Modem Transport Type]
V.22 Modem Transport Type that the gateway uses.
You can select:
0 = Transparent
2 = Modem Bypass (default).
V23ModemTransportType
[V.23 Modem Transport Type]
V.23 Modem Transport Type that the gateway uses.
You can select:
0 = Transparent
2 = Modem Bypass (default).
V32ModemTransportType
[V.32 Modem Transport Type]
V.32 Modem Transport Type that the gateway uses.
You can select:
0 = Transparent
2 = Modem Bypass (default).
Note: This option applies to V.32 and V.32bis modems.