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Software Configuration Guide for Cisco 2600 Series, Cisco 3600 Series, and Cisco 3700 Series Routers
OL-1957-03
Chapter 3
Configuring with the Command-Line Interface
Configuring T1 and E1 Interfaces
Configuring Codec Complexity
The number of channels that an HDV network module can support depends on the number of PVDMs
that are installed and the complexity level of the codecs (vocoders) needed to support the required
compression method. The HDV network module supports the following number of channels:
•
Up to 6 channels per PVDM (up to 30 channels for cards with 5 PVDMs installed) for high
complexity codecs (vocoders) that support the following services: G.711, G.726, G.729, G.723.1,
G.728, and fax relay
•
Up to 12 channels per PVDM (up to 60 channels for cards with 5 PVDMs installed) for medium
complexity codecs (vocoders) that support the following services: G.711, G.726, G.729a, and fax
relay
Each HDV network module can support only one type of compression complexity (either high or
medium), although HDV network modules with different compression complexity types can be installed
in the same router.
Use the following procedure to configure the codec (vocoder) complexity on your HDV network module.
Step 2
Router(config-controller)# exit
Exit controller configuration mode.
Step 3
Router(config)# connect id controller-1
tdm-group-no-1 controller-2 tdm-group-no-2
Configure cross-connect pass-through between
two controllers.
Command
Purpose
Command
Purpose
Step 1
Router> enable
Password: password
Router#
Enter enable mode. Enter the password.
You have entered enable mode when the prompt
changes to
Router#
.
Step 2
Router# configure terminal
Enter configuration commands, one per line.
End with CNTL/Z.
Router(config)#
Enter global configuration mode. You have
entered global configuration mode when the
prompt changes to
Router(config)#.
Step 3
Router(config)# voice-card {0-4}
Select the voice card to configure.
Step 4
Router(config-voicecard)# codec complexity
{high |medium}
Specify the compression complexity for the voice
card.One complexity type is allowed per router.
Step 5
Router(config-voicecard)# exit
Exit back to global configuration mode.
Return to Step 3 if your router has more than one
voice card that you need to configure.
Step 6
Router(config)# Ctrl-z
When you finish configuring interfaces, return to
enable mode.
