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codec preference

Release 12.0(7)XK

codec preference

To deﬁne the order of preference in which network dial peers select codecs, use the codec

preference voice-class conﬁguration command. Enter the no form of this command to restore the

default order of preference.

codec preference priority codec bytes payload-size

no codec preference

Syntax Description

Defaults

If no codec is speciﬁed, dial peers are conﬁgured for g729r8 and the voice payload is as shown in

Table 1 for G.729r8.

If a codec is speciﬁed without the bytes keyword, the voice payload is as shown in Table 1.

priority The order of selection preference you assign to a codec. The valid range is 1 to 12,

where 1 is the highest priority.

codec Codec options.

Note Codecs with asterisk (*) are not supported on Cisco MC3810 series equipped

with a voice compression module (VCM); a high-performance compression

module (HCM) is required to support these codecs.

g711alaw—G.711 A Law 64000 bps

g711ulaw—G.711 u Law 64000 bps

g723ar53—*G.723.1 Annex A 5300 bps

g723ar63—*G.723.1 Annex A 6300 bps

g723r53— *G.723.1 5300 bps

g723r63—*G.723.1 6300 bps

g726r16—G.726 16000 bps

g726r24— G.726 24000 bps

g726r32—G.726 32000 bps

g728—*G.728 16000 bps

g729abr8—*G.729 Annex A and Annex B 8000 bps

g729ar8—G.729 Annex A 8000 bps

g729br8—*G.729 Annex B 8000 bps

g729r8—G.729 8000 bps

bytes (Optional) The voice payload for each frame.

payload-size (Optional) Number of bytes you specify as the voice payload of each frame. Values

depend on the codec type and the packet voice protocol. See Table 1 for valid entries

and default values.

1 2 ... 31 32 33 34 35 36 37 38 39 40 41 ... 77 78

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Cisco MC3810 Guía de instalación Pagina 36