IMPORTANT: Tested working, powers on and functions properly. Pre-owned, used condition, normal signs of prior use present, NO POWER SUPPLY or AC adapter included, requires PoE or a separately purchased power supply, includes the handset and desk stand exactly as shown, only items shown in photos are included, please review all pictures. Polycom SoundPoint IP 550 is a high performance business VoIP desk phone featuring a high resolution backlit display for easy menu navigation, directory access, and call management. Advanced SIP software offers broad interoperability across most VoIP platforms, while Polycom HD Voice technology delivers crisp handset and speakerphone audio quality on every call. Built in Ethernet port with Power over Ethernet support enables single cable installation in any office. Multi-line capable, great for offices, call centers, small businesses, help desks, reception areas, and remote work setups.