*Discontinued* Replaced by Polycom 450 w/Power Supply

Polycom IP 501 phones leverage the capabilities of SIP-based VoIP networks to deliver breakthrough voice quality and advanced features that make calls more efficient and productive. Polycom IP 501 is a 3-line desktop IP telephone that delivers exceptional sound quality. Superb voice quality when used with a headset, handset or in hands-free speakerphone mode. Full-duplex speakerphone with Clarity by Polycom acoustic technology. Dedicated feature keys offer one-button access to essential telephony features. Interoperable with leading IP PBX and Soft switch platforms. SIP or MGCP.

Key Features:

• Three lines
• 160 x 80 graphical LCD
• Dual-port 10/100 Ethernet switch
• Combination of 9 dedicated feature keys and 4 context-sensitive soft keys
• Support of IEEE 802.3af or Cisco PoE with optional cable accessory
• Includes External Power Supply
• Dedicated RJ-9 headset port for Plantronics or GN headsets

For more details see Polycom IP 501 datasheet as well as Polycom IP Phone Reference Guide