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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
cnfecanrec
cnfecanrec
To configure residual echo control for digital signal processors (DSPs) on a VISM card line that is used
for echo cancellation, use the cnfecanrec command in the VoIP switching/trunking, switched AAL2
PVC, and AAL2 trunking operating modes.
cnfecanrec line-num res-echo-control
Syntax Description
Command Modes VoIP switching/trunking, switched AAL2 PVC, and AAL2 trunking
Usage Guidelines This command applies to DSPs processing data on a specified line.
Examples The following example shows that line 1 of the current VISM card is configured with comfort noise
residual echo control:
cnfecanrec 1 4
Related Commands
line-num Line number to configure with residual echo control; in the range from 1 to 8.
res-echo-control Residual echo control for a VISM card line. It can be on e of the follo wing v alues:
•1 = Cancel only
•2 = Suppress residual
•4 = Comfort noise
Command Description
cnfecanenable Enables or disables ECAN on a specified VISM card line.
cnfecantail Configures the maximum tail length for DSPs on a VISM card that is used for
echo cancellation.
dsplndsp Displays the DSP information for a specified VISM card line.