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Command Reference
24
Cisco IOS Release 12.0(7)T
Command History
Usage Guidelines
For toll quality, use the g711alaw or g711ulaw values. 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.
Examples
The following example configures a voice coder rate that provides toll quality but uses a relatively
high amount of bandwidth:
dial-peer voice 10 voip
codec g711alaw
Related Commands
Release Modification
11.3(1)T This command was introduced.
11.3(3)T Support for Cisco 2600 series routers was added.
12.0(3)T Support for the Cisco AS5300 access server was added.
12.0(7)T Additional voice coder rates of speech were added.
Command Description
dtmf-relay Specifies how an H.323 gateway relays DTMF tones between telephony
interfaces and an IP network.