Cisco 8865 Series Administration Guide

To reduce or eliminate any adverse effects to the phones, schedule administrative network tasks during a time
when the phones are not being used or exclude the phones from testing.
Cisco IP Phone 7800 Series Multiplatform Phones Administration Guide
327
Cisco IP Phone Troubleshooting
Phone Behavior During Times of Network Congestion

Cisco 8865 Series Specifications

General

Resolution	800 x 480 pixels
Speakerphone	Full-duplex speakerphone
Codec Support	G.711, G.722, G.729, iLBC, Opus
Audio	Wideband audio
Ethernet	10/100/1000 Mbps
USB Ports	2 USB ports
Video	720p HD video
Power	IEEE 802.3af/at Power over Ethernet (PoE)
Protocols	SIP
Headset Connector	RJ9 headset port
Security	802.1X, TLS, SRTP
Weight	1.6 kg