Cisco 3725 Software Configuration Guide - Page 77

Configuring Codec Complexity

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Chapter 3 Configuring with the Command-Line Interface Configuring T1 and E1 Interfaces To configure TDM connect, complete the following steps in controller configuration mode: Command Step 1 To configure a TDM channel group for T1: a Router(config-controller)# tdm-group tdm-group-no timeslot timeslot-list [type {e&m | fxs [loop-start | ground-start] | fxo [loop-start | ground-start]}] Purpose Configure a TDM channel group for T1. If configuring cross-connect for data traffic only, do not specify the type option. The type option only applies if the mode cas command is enabled. To configure a TDM channel gorup for E1: b Router(config-controller)# tdm-group tdm-group-no timeslot timeslot-list [type {e&m | fxs [loop-start | ground-start] | fxo [loop-start | ground-start] | fxs-melcas | fxo-melcas | e&m-melcas}] Step 2 Router(config-controller)# exit Step 3 Router(config)# connect id controller-1 tdm-group-no-1 controller-2 tdm-group-no-2 Configure a TDM channel group for E1. The "melcas" options are supported only on E1 and apply to the Mercury Exchange Limited (MEL) Channel Associated Signaling (CAS) standard, used primarily in the United Kingdom. The MEL options help preserve CAS integrity on the line. If configuring cross-connect for data traffic only, do not specify the type option. The type option only applies if the mode cas command is enabled. Exit controller configuration mode. Configure cross-connect pass-through between two controllers. 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. OL-1957-04 Software Configuration Guide for Cisco 2600 Series, Cisco 3600 Series, and Cisco 3700 Series Routers 3-17

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3-17
Software Configuration Guide for Cisco 2600 Series, Cisco 3600 Series, and Cisco 3700 Series Routers
OL-1957-04
Chapter 3
Configuring with the Command-Line Interface
Configuring T1 and E1 Interfaces
To configure TDM connect, complete the following steps in controller configuration mode:
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.
Command
Purpose
Step 1
To configure a TDM channel group for T1:
a
Router(config-controller)#
tdm-group
tdm-group-no
timeslot
timeslot-list
[
type
{
e&m
|
fxs
[
loop-start
|
ground-start
] |
fxo
[
loop-start
|
ground-start
]}]
Configure a TDM channel group for T1. If
configuring cross-connect for data traffic only, do
not specify the
type
option. The
type
option only
applies if the
mode cas
command is enabled.
To configure a TDM channel gorup for E1:
b
Router(config-controller)#
tdm-group
tdm-group-no
timeslot
timeslot-list
[
type
{
e&m
|
fxs
[
loop-start
|
ground-start
] |
fxo
[
loop-start
|
ground-start
] |
fxs-melcas
|
fxo-melcas
|
e&m-melcas
}]
Configure a TDM channel group for E1. The
“melcas” options are supported only on E1 and
apply to the Mercury Exchange Limited (MEL)
Channel Associated Signaling (CAS) standard,
used primarily in the United Kingdom. The MEL
options help preserve CAS integrity on the line. If
configuring cross-connect for data traffic only, do
not specify the
type
option. The
type
option only
applies if the
mode cas
command is enabled.
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.