AudioCodes Mediant 4000 SBC - Page 992

CHAPTER60 Configuration Parameters Reference
Mediant 4000 SBC | User's Manual
Parameter 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.
'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 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 Profiles.
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.
'SIP T.38 Version'
configure voip > sip-definition
settings > sip-t38-ver
[SIPT38Version]
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 Support.
'Fax Relay Enhanced Redundancy Depth'
configure voip > media fax-modem >
enhanced-redundancy-depth
[FaxRelayEnhancedRedundancyDepth]
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] 0 = (Default) No redundancy
■ [1] 1 = One-packet redundancy
■ [2] 2 = Two-packet redundancy
- 959 -