Cisco MC3810-APM-FXO= Datasheet download pdf (Page 12)

Configuring Voice Ports

Analog Voice Ports Configuration Task List

VC-46

Cisco IOS Voice, Video, and Fax Configuration Guide

To configure codec complexity on the Cisco MC3810 multiservice concentrator using HCMs, use the

following commands beginning in privileged EXEC mode:

Configuring Basic Parameters on Analog FXO, FXS, or E&M Voice Ports

This section describes commands for basic analog voice port configuration. All the data recommended

in the “Preparing to Configure Analog Voice Ports” section on page 41 should be gathered before

starting this procedure.

If configuring a Cisco MC3810 multiservice concentrator that has HCMs, codec complexity should also

be configured, following the steps in the “Configuring Codec Complexity for Analog Voice Ports on the

Cisco MC3810 with High-Performance Compression Modules” section on page 45.

Note If you have a Cisco MC3810 multiservice concentrator or Cisco 3660 router, the compand-type

a-law command must be configured on the analog ports only. The Cisco 2660, 3620, and 3640 routers

do not require the configuration of th compand-type a-law command, however, if you request a list

of commands, the compand-type a-law command will display.

Command Purpose

Step 1

Router# show voice dsp

Checks the DSP voice channel activity. If any DSP

voice channels are in the busy state, the codec

complexity cannot be changed.

When all the DSP channels are in the idle state,

continue to Step 2.

Step 2

Router# configure terminal

Enters global configuration mode.

Step 3

Router(config)# voice-card 0

Enters voice-card configuration mode and

specifies voice card 0.

Step 4

Router(config-voicecard)# codec complexity {high |

medium}

(For analog voice ports) Specifies codec

complexity based on the codec standard being

used. This setting restricts the codecs available in

dial peer configuration. All voice cards in a router

must use the same codec complexity setting.

The keywords are as follows:

• high—Specifies two voice channels encoded

in any of the following formats:

G.711ulaw, G.711alaw, G.723.1(r5.3),

G.723.1 Annex A(r5.3), G.723.1(r6.3),

G.723.1 Annex A(r6.3), G.726(r16),

G.726(r24), G.726(r32), G.728, G.729, G.729

Annex B, and fax relay.

• medium—(default) Specifies four voice

channels encoded in any of the following

formats: G.711ulaw, G.711alaw, G.726(r16),

G.726(r24), G.726(r32), G.729 Annex A,

G.729 Annex B with Annex A, and fax relay.

Note If two HCMs are installed, this command

configures both HCMs at once.

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