Cisco Cisco IOS Software Release 12.4(15)T

To configure a voice VRF, use the voice vrf command in global configuration mode. To remove the voice 
VRF configuration, use the no form of this command.

voice vrf vrfname 

no voice vrf vrfname

No voice VRF is configured.

Global configuration

You must create a VRF using the ip vrf vrfname command before you can configure it as a voice VRF. 

To ensure there are no active calls on the voice gateway during a VRF change, voices services must be 
shut down on the voice gateway before you configure or make changes to a voice VRF.

The following example shows that a VRF called vrf1 was created and then configured as a voice VRF:

ip vrf vrf1

 rd 1:1

 route-target export 1:2

 route-target import 1:2

!

voice vrf vrf1

!

voice service voip

A name assigned to the voice vrf.

12.4(11)XJ

This command was introduced.

12.4(15)T

This command was integrated into Cisco IOS Release 12.4(15)T.

Defines a VPN VRF instance and enters VRF configuration mode.