Cisco 7800 Series Administration Guide

DescriptionDefaultField Type
or Choices
Field
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.
DHCP VLAN option
Cisco IP Phone 7800 Series Multiplatform Phones Administration Guide
40
Cisco IP Phone Installation
Network Configuration Fields

Cisco 7800 Series Specifications

General

Wireless	No
Video Support	No
PoE	Yes, 802.3af/at
Audio Codec Support	G.711, G.722, G.729, iLBC
Network Protocols	SIP, SDP, IPv4, IPv6, UDP, TCP, DNS, TFTP, HTTP, HTTPS, DHCP
Security Features	802.1X, TLS, SRTP
Power Options	PoE
Headset Port	3.5mm
Buttons	Line keys, navigation cluster, softkeys, mute, speakerphone, headset, volume control
Bluetooth	No
Ethernet Switch	Yes, 2-port 10/100/1000
USB Port	Yes, for headset (7875)