Cisco SPA504G with Power Supply<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Full-featured 4-line business-class IP phone supporting Power over Ethernet (PoE) (POWER SUPPLY INCLUDED)</li><li>Connects directly to an Internet telephone service provider or to an IP private branch exchange (PBX)</li><li>Dual switched Ethernet ports for connecting a computer behind the phone， reducing cabling costs</li><li>Wideband audio for unsurpassed voice clarity and enhanced speaker quality</li><li>Supports up to two Cisco® SPA500S Expansion Module， adding up to 64 additional buttons* • Supports both Session Initiation Protocol (SIP) and Smart Phone Control Protocol (SPCP) with the Cisco Unified Communications 500 Series for Small Business</li></ul></div><img src="http://ecx.images-amazon.com/images/I/41dthpzrspL.jpg" noproxy>