vlanVoiceOUIPrefix 1.3.6.1.4.1.9.6.1.101.48.54.3.1.1

The index value used to identify the OUI MAC Prefix component associated with this entry. The value of this object is used as an index to the vlanVoiceOUITable. Voice VLANs OUI Prefix is the first 3 most significant octets of the MAC address.