AudioCodes Mediant 500L User Manual page 1111

User's Manual
Parameter
[V34ModemTransportType]
bell-modem-transport-type
[BellModemTransportType]
Fax CNG Mode
configure voip > media fax-modem >
fax_cng_mode
[FaxCNGMode]
CNG Detector Mode
configure voip > media fax-modem > coder
[CNGDetectorMode]
Fax Detect Timeout Since Connect
Version 7.2
69. Configuration Parameters Reference

[3] Events Only = Transparent with Events.
Note: You can also configure this functionality
per specific calls, using IP Profiles
(IpProfile_VxxTransportType). For more
information, see ''Configuring IP Profiles'' on page
438.
Determines the Bell modem transport method.

[0] = Transparent (default)

[2] = Bypass

[3] = Transparent with events
Determines the device's handling of fax relay
upon detection of a fax CNG tone or a
V.34/Super G3 V8-CM (Call Menu) signal 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.

[2] Sends on CNG or v8-cn = 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) or upon detection of a V8-CM signal.
Note:

If the parameter is set to [2] and the
CNGDetectorMode parameter is set to [0], the
device sends a re-INVITE only if it detects a
V8-CM signal from the originating fax.

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
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 438.
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.
Defines a timeout (in msec) for detecting fax from
1111 Mediant 500L Gateway & E-SBC
Description