Configuring Cisco MC3810 Series Concentrators to Use High-Performance Compression Modules
Configuration Tasks
4
Cisco IOS Release 12.1(2)T
Configuring Codec Complexity
To configure codec complexity for voice ports, enter the following commands, beginning in privileged
EXEC mode. Commands apply to both analog and digital voice ports unless otherwise indicated. You
enter the codec complexity command in voice-card configuration mode. On the Cisco MC3810 series,
voice-card 0 is used as a virtual voice-card, and the setting applies to all voice ports on a Cisco MC3810.
This procedure does not cover other voice-port configuration commands that may be required. To learn
more, see the
Cisco IOS Multiservice Applications Configuration Guide
and the
Cisco IOS Multiservice
Applications Command Reference
for Cisco IOS Release 12.1.
Verifying Codec Complexity Settings
To verify the codec complexity configuration, enter the
show running-config
command to display the
current voice-card setting. If medium complexity is specified, the codec complexity setting is not
displayed. If high complexity is specified, the setting
codec complexity high
is displayed. The
following example shows an excerpt from the command output if high complexity has been specified:
Router#
show running-config
.
.
.
hostname router-alpha
voice-card 0
codec complexity high
.
.
Command
Purpose
Step 1
router#
show voice dsp
Check the DSP voice channel activity. If any DSP voice channels are in the
busy state, you cannot change the codec complexity.
When all of the DSP channels are in the idle state, continue to step 2.
Step 2
router#
configure terminal
Enter global configuration mode.
Step 3
router(config)#
voice-card 0
Enter voice-card configuration mode and specify voice card 0. Voice card 0
provides the configuration mode for setting the codec complexity on a
Cisco MC3810.
Step 4
router(config-voicecard)#
codec
complexity
{
high
|
medium
}
Specify the codec complexity for this Cisco MC3810 according to the
bandwidth requirements and the number of voice channels to be supported
per DSP. The default is medium complexity, which provides four voice
channels per DSP.
See the “codec complexity” section on page 11 in the Command Reference
for information about the
codec complexity
command.
Step 5
router(config-voicecard)#
exit
Exit from voice-card configuration mode.
