Version 7.2 1031 Mediant 1000B Gateway & E-SBC
User's Manual 62. Configuration Parameters Reference
Parameter Description
Fax CNG Mode
configure voip > media fax-
modem > fax_cng_mode
[FaxCNGMode]
Determines the device's handling of fax relay upon detection of a fax
CNG tone from originating faxes.
 [0] Doesn't send T.38 Re-INVITE = (Default) SIP re-INVITE is not
sent.
 [1] Sends on CNG tone = Sends a SIP re-INVITE with T.38
parameters in SDP to the terminating fax upon detection of a fax
CNG tone, if the CNGDetectorMode parameter is set to 1.
Note:
 This feature is applicable only if the IsFaxUsed parameter is set
to [1] or [3].
 The device also sends T.38 re-INVITE if the CNGDetectorMode
parameter is set to [2], regardless of the FaxCNGMode
parameter settings.
CNG Detector Mode
configure voip > media fax-
modem > coder
[CNGDetectorMode]
Global parameter that enables the detection of the fax calling tone
(CNG) and defines the detection method.
You can also configure this
functionality per specific calls, using IP Profiles
(IpProfile_CNGmode). For a detailed description of the parameter
and for configuring this functionality in the IP Profiles table, see
''Configuring IP Profiles'' on page
393.
Note: If this functionality is configured for a specific IP Profile, the
settings of this global parameter is ignored for calls associated with
the IP Profile.
Fax Detect Timeout Since
Connect
fax-detect-timeout-since-
connect
[FaxDetectTimeoutSinceConn
ect]
Defines a timeout (in msec) for detecting fax from the Tel side during
an established voice call. The interval starts from when the voice call
is established. If the device detects a fax tone within the interval, it
ends the voice session and sends a T.38 or VBD re-INVITE
message to the IP side and processes the fax. If the interval expires
without any received fax event, the device ignores all subsequent fax
events during the voice session.
The valid value is 0 to 120000. The defau
lt is 0. If set to 0, the device
can detect fax during the entire voice call.
Fax Relay Enhanced
Redundancy Depth
configure voip > media fax-
modem > enhanced-
redundancy-depth
[FaxRelayEnhancedRedunda
ncyDepth]
Defines the number of times that control packets are retransmitted
when using the T.38 standard.
The valid range is 0 to 4. The default is 2.
Fax Relay Redundancy Depth
configure voip > media fax-
modem > redundancy-depth
[FaxRelayRedundancyDepth]
Defines the number of times that each fax relay payload is
retransmitted to the network.
 [0] = (Default) No redundancy
 [1] = One packet redundancy
 [2] = Two packet redundancy
Note: The parameter is applicable only to non-V.21 packets.
Fax Relay Max Rate (bps)
configure voip > media fax-
modem > max-rate
[FaxRelayMaxRate]
Defines the maximum rate (in bps) at which fax relay messages are
transmitted (outgoing calls).
 [0] 2400 = 2.4 kbps
 [1] 4800 = 4.8 kbps
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