Cisco 7800 Series Administration Manual page 54

Network Configuration Fields
Field Field Type
or Choices
DHCP VLAN option
Cisco IP Phone 7800 Series Multiplatform Phones Administration Guide
40
Default Description
Enter a predefined DHCP VLAN option to learn the voice VLAN
ID.
When you use a VLAN ID with CDP, LLDP, or manually select
a VLAN ID, that VLAN ID takes precedent over the selected
DHCP VLAN option.
Valid values are:
• Null
• 128 to 149
• 151 to 158
• 161 to 254
Default value is null.
Cisco recommends that you use DHCP Option 132.
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