AudioCodes Mediant 4000 SBC User Manual page 992

CHAPTER 60 Configuration Parameters Reference
'CNG Detector Mode'
configure voip > media fax-modem >
coder
[CNGDetectorMode]
'SIP T.38 Version'
configure voip > sip-definition
settings > sip-t38-ver
[SIPT38Version]
'Fax Relay Enhanced Redundancy Depth'
configure voip > media fax-modem >
enhanced-redundancy-depth
[FaxRelayEnhancedRedundancyDepth]
'Fax Relay Redundancy Depth'
configure voip > media fax-modem >
redundancy-depth
[FaxRelayRedundancyDepth]
Parameter
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Mediant 4000 SBC | User's Manual
Description
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.
Global parameter that enables the
detection of the fax calling tone (CNG)
and defines the detection method. You
can also configure this feature per
specific calls, using IP Profiles
(IpProfile_CNGmode). For a detailed
description of the parameter and for
configuring this feature in the IP Profiles
table, see Configuring IP
Note: If this feature is configured for a
specific IP Profile, the settings of this
global parameter is ignored for calls
associated with the IP Profile.
Defines the T.38 fax relay version.
■ [-1] Not Configured = (Default) No
T.38
■ [0] Version 0
■ [3] Version 3 = T.38 Version 3 (V.34
over T.38)
Note:
■ Interworking of T.38 Version 3 is
supported only for Gateway calls. For
SBC calls, the device forwards T.38
Version 3 transparently (as is) to the
other leg (i.e., no transcoding).
■ For a description on V.34 over T.38
fax relay, see V.34 Fax
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.
Defines the number of times that each
fax relay payload is retransmitted to the
network.
■ [0] 0 = (Default) No redundancy
■ [1] 1 = One-packet redundancy
■ [2] 2 = Two-packet redundancy
Profiles.
Support.