Cisco Systems ATA 186 manual PrfCodec, LBRCodec, 5-15, Description, Value Type, Range, Default

Chapter 5 Parameters and Defaults

MGCP Configuration Parameters

PrfCodec

Description

This parameter specifies the default preferred codec. The preferred codec is used only when the Call Agent does not provide a list of preferred codecs in the Local Connection Options 'a' parameter and when the remote party does not include a codec preference in its SDP.

The following values are valid:

0=G.723.1 (only if LBRCodec=0)

1=G.711A-law

2=G.711u-law

3=G.729a (only if LBRCodec=3)

Value Type

Integer

Range

0 to 3

Default

1

Voice Configuration Menu Access Code

36

LBRCodec

Description

This parameter is used for selecting the low-bit-rate codec. The following values are valid:

•0—Select G.723.1 as the low-bit-rate codec (available only for connections 0 and 2).

•3—Select G.729A as the low-bit-rate codec (available only for connection 0).

If LBRCodec=0, then both Cisco ATA FXS ports can operate with the following codecs:

•Number of codecs=3

•Codec[0]=G.711µ -law

•Codec[1]=G.711A-law

•Codec[2]=G.723.1

If LBRCodec=3, check the setting of bit 21 in the ConnectMode parameter (see the “ConnectMode” section on page 5-24) to determine if G.729 is enabled for the Phone 1 or Phone 2 FXS port.

If LBRCodec=3, then the Phone 1 FXS port can operate with the following codecs:

•Number of codecs=4

•Codec[0]=G.711µ-law

•Codec[1]=G.711A-law

Cisco ATA 186 and Cisco ATA 188 Analog Telephone Adaptor Administrator’s Guide for MGCP (version 3.0)

OL-4803-01 5-15