Configuring Ecan - Cisco Voice Interworking Services (VISM) Installation And Configuration Manual

Chapter 4 Configuring VISM Features
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You have completed assigning and configuring the codec template. Proceed to the
section on page

Configuring ECAN

Complete the following steps to enable and configure echo cancellation (ECAN) on a line-by-line basis:
Type the cnfecanenable command, line-num and ecan-enable argument values, and press Enter to
Step 1
enable (or disable) ECAN for a line. Specify the arguments with the following values:
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Step 2 Type the cnfecanrec command, line-num and res-echo-control argument values, and press Enter to set
the residual echo control. Specify the arguments with the following values:
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Type the cnfecantail command, line-num and max-ecan-tail argument values, and press Enter to specify
Step 3
the ECAN algorithm's maximum tail length. Specify the arguments with the following values:
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Release 3.0, Part Number OL-2521-01 Rev. D0, June 2004
5 = Local MIB, LCO list, remote SDP data list
6 = Local MIB, remote SDP data list, LCO list
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line-num: In the range from 1 to 8.
ecan-enable:
1 = Disable
–
2 = Enable
–
line-num: Type the value used in
res-echo-control:
– 1 = Cancel only
– 2 = Suppress residual
– 4 = Comfort noise
line-num: Type the value used in
max-ecan-tail (defined in milliseconds):
24
–
– 32
– 48
– 64
– 80
– 96
112
–
128
–
Step 1.
Step 1.
Cisco VISM Installation and Configuration Guide
Configuring VISM Features
"Configuring ECAN"
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