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Cisco VISM Installation and Configuration Guide
Release 3.0, Part Number OL-2521-01 Rev. D0, June 2004
Chapter5 CLI Commands
cnft38fxlco
cnft38fxlco
To configure the fax handling instructions for a specif ied line, u se the cnft38fxlco command in the VoIP
switching/trunking operating mode.
cnft38fxlco line-num fx-lco
Syntax Description
Command Modes VoIP switching/trunking
Usage Guidelines Follow standard CLI procedures for this command.
Examples The following example shows that the fax preamble response configured for line number 4 is first the
fax passthrough and then VISM controlled T.38:
cnft38fxlco 4 3
line-num Line number of the channel, in the range from 1 t o 8.
fx-lco Local connection option fax preamble response. It can be one of the following
values:
•1 = VISM controlled T.38, then fax pass through. Upon detecting a fax
preamble, VISM first attempts to complete a fax relay on the connection.
If fax relay is unsuccessful due to a lack of local resources, T.38
connection admission control (CAC) failure, or the remote side did not
acknowledge the 200 Named Signaling Event (NSE), VISM follows the
procedure for fax passthrough. If fax relay is successful, the conne ction is
returned to voice mode when the fax end of transfer occurs.
•2 = VISM controlled T.38 only. Upon detecting a fax preamble, VISM
attempts to complete a fax relay on the connection. If fax relay is
unsuccessful, the connection is returned to voice mode. If the fax relay is
successful, the connection is returned to voice mode when the fax end of
transfer occurs.
•3 = Passthrough, then VISM controlled T.38. Upon detecting a fax
preamble, VISM first attempts the procedure for fax passthrough. If fax
passthrough is unsuccessful due to a lack of local resources or an upspeed
CAC failure, VISM attempts the fax relay procedure. If both fax
passthrough and fax relay fail, the connection is returned to voice mode.
If either fax passthrough or fax relay are successful, the connection is
returned to voice mode when the fax end of transfer occurs.
•4 = Passthrough only. Upon detecting a fax preamble, VISM attempts the
fax passthrough procedure.
•5 = Off.