Cisco Unified IP Conference Phone 8831-SIP, SRTP-full-duplex two-way wideband

Details

Technical details
DECT connectable	Yes
Integrated voicemail	Yes
Case material	Polycarbonate
Volume control	Digital
Speakerphone	Yes
Quick start guide	Yes
Power requirements	PoE Class 3 / 48 VDC
Base station	Yes
Backlight	Yes
Display
Touchscreen	No
Display resolution	396 x 162 pixels
Display diagonal	8.89 cm (3.5")
Display	LCD
Backlight display	Yes
Phone features
Message-waiting indicator (MWI)	Yes
Call transfer	Yes
Redialing	Yes
Conference call	Yes
Caller ID	Yes
Call waiting	Yes
Call hold	Yes
Call forwarding	Yes
Audio
Voice codecs	G.711, G.722, G.729A, G.729ab, iLBC
Networking
Networking standards	IEEE 802.3, IEEE 802.3af, IEEE 802.3u
Wi-Fi	No
Supported network protocols	SIP
Quality of Service (QoS) support	Yes
Ethernet LAN	Yes
DHCP client	Yes
Bluetooth	No
Security
Security algorithms	128-bit AES, 802.1x RADIUS
Ports & interfaces
Ethernet LAN (RJ-45) ports	1
Power
Power over Ethernet (PoE)	Yes
Weight & dimensions
Width	263.5 mm
Depth	50.8 mm
Height	150.5 mm
Weight	1.59 kg
Operational conditions
Storage temperature (T-T)	25 - 70 °C
Storage relative humidity (H-H)	0 - 95%
Operating temperature (T-T)	0 - 40 °C
Colour
Colour of product	Black
Microphone
Microphone mute	Yes
Microphone frequency	160 - 20000 Hz
Certificates
Safety	UL 60950-1, CAN/CSA-C22.2, EN 60950-1, IEC 60950-1, AS/NZS 60950-1: 2011, GB4943 2011
Packaging content
Manual	Yes
Other features
Backlight	Yes