Audio
Wideband audio
Call Features
Caller ID, call hold, call waiting, call transfer
Codec Support
G.711, G.729a, iLBC
Dimensions (H x W x D)
10 x 10 x 1.5 inches
Display
5-inch WVGA color display (800 x 480 pixels)
Ethernet Switch
10/100/1000 ports for PC and phone connection
Firmware
Upgradable firmware
Fixed Feature Keys
Fixed keys for hold, transfer, conference, message, etc.
Headset Port
Dedicated RJ-9 headset port
Navigation Cluster
Four-way navigation cluster
Operating Temperature
32 to 104°F (0 to 40°C)
Power
IEEE 802.3af Power over Ethernet (PoE)
Product Line
Cisco 9900 Series
Programmable Line Keys
Five line keys
Relative Humidity
10% to 90% (non-condensing)
Security
Secure voice communications, HTTPS, and more
Signaling Protocol
SIP (Session Initiation Protocol)
Speakerphone
Full-duplex speakerphone
USB Port
Two USB ports for headset and other accessories
Video Calling
Video calling capable with optional camera
Voicemail
Integrated voicemail support