Cisco 7800 Series Administrator's Guide

Procedure
Step 1
Remove the handset from the cradle and pull the plastic tab from the handset rest.
Step 2
Rotate the tab 180 degrees.
Step 3
Hold the tab between two fingers, with the corner notches facing you.
Step 4
Line up the tab with the slot in the cradle and press the tab evenly into the slot. An extension protrudes from
the top of the rotated tab.
Step 5
Return the handset to the handset rest.
Cisco IP Phone 7800 Series Administration Guide for Cisco Unified Communications Manager
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Adjust the Handset Rest

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)