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codec
To specify the voice coder rate of speech for a dial peer, use the codec dial-peer configuration
command. Use the no form of this command to reset the default value for this command.
codec {g711alaw | g711ulaw | g729r8}
no codec
Syntax Description
g711alaw G.711 A-Law 64,000 bits per second (bps).
g711ulaw G.711 u-Law 64,000 bps.
g729r8 G.729 8000 bps.
Default
The default value for this command is g729r8.
Command Mode
Dial-peer configuration
Usage Guidelines
This command first appeared in Cisco IOS Release 11.3(1)T.
Use the codec command to define a specific voice coder rate of speech for a dial peer.
For toll quality, use g711alaw or g711ulaw. These values provide high-quality voice transmission
but use a significant amount of bandwidth. For almost toll quality (and a significant savings in
bandwidth), use the g729r8 value.
If codec values for the VoIP peers of a connection do not match, the call will fail.
This command is only applicable to VoIP peers.
Example
The following example configures a voice coder rate that provides toll quality and uses a relatively
high amount of bandwidth:
dial-peer voice 10 voip
codec g711alaw
codec
Voice Over IP for the Cisco 3600 Series Commands 4-9