3Com SuperStack 3 4500 PoE Switch 3CR17571-91 Phones 1200307E2 Features:

1200307E2 Features:

direct station selection

A phone book is built into the phone along with a headset port and a full duplex speakerphone

Auto Negotiation: Speed and Duplex

3Com SuperStack 3 4500 PoE Switch 3CR17571-91 Phones 1200307E2 Features:3Com SuperStack 3 4500 PWR Description: The 3Com 3C17571 91 SuperStack 3 4500 PWR switch is a twenty six port, fast Ethernet (10 100 Mbps) switch. This stackable, rack mountable switch features PoE capabilities so you can power your 802. 3af compliant devices. A perfect choice for your telephony deployment, the 3C17571 91 switch also has dual Gigabit uplink ports that allow high speed connectivity to your servers and other important networking