2.1.c [iii] Normal, extended VLAN, voice VLAN
Normal-range VLANs are VLANs with VLAN IDs 1 to 1005. If the switch is in VTP server or transparent mode, you can add, modify or remove configurations for VLANs 2 to 1001 in the VLAN database. When a switch is in VTP transparent mode (VTP disabled), you can create extended-range VLANs (in the range 1006 to 4094).
A voice VLAN port is an access port attached to a Cisco IP Phone, configured to use one VLAN for voice traffic and another VLAN for data traffic from a device such as a PC attached to the phone.
Adam, Paul (2014-07-12). All-in-One CCIE V5 Written Exam Guide (Kindle Locations 1562-1565). . Kindle Edition.