IP PHONE CISCO CP-9951 Refurbished

Screen : 640 x 480, 24-bit color, 5-inches graphical TFT color display
Lines : 5
Networking : Internal 2-port Cisco Ethernet switch allows for a direct connection to a 10/100/1000 BASE-T Ethernet network through an RJ-45 interface with single LAN connectivity for both the phone and a colocated PC
Voice Codecs : G.711a, G.711u, G.729a, G.729ab, G.722, iSAC and iLBC audio compression codecs
Network Features : Cisco Discovery Protocol (CDP), Link Layer Discovery Protocol Power over Ethernet (LLDP-PoE), Transparent secure roaming, Provisioning of network parameters through DHCP, Switch Auto-Negotiation, VPN Client

Signaling protocol support : SIP interoperation with the call control and partner applications enables a rich unified communications solution
Features : Ergonomic Design, Customization, Display, Ethernet, Bluetooth, USB, External Audio Ports, 5 Lines Expanding to 77 with 2 Key Expansion Modules, Buttons, Key Expansion Module, Cisco Unified IP Camera, Headset Support, New User Experience, SIP Signaling, Application Support
Power Supply : IEEE Power over Ethernet 802.3af and 802.3at supported, class 4. The 9951 is compatible with both class 3 and class 4 IEEE PoE switch blades and supports both Cisco Discovery Protocol (CDP) and Link Layer Discovery Protocol – Power over Ethernet (LLDP-PoE)

Dimensions : 23.4 x 26.25 x 3.97 mm
Weight : 1.527 kg