The SoundPoint IP 501* is a three-line Voice over IP telephone that seamlessly integrates with IP PBX and Softswitch vendors' IP solutions. As protocols develop and standards evolve, it's easy to update the phone in the field via a software download, thus enabling new features and functionality for the phone and protecting your investment. Whether you deploy MGCP or SIP standards, Polycom offers a solution that fits all your business communication needs. Features: Standards Based Supports SIP and MGCP 3 line appearances Large, content-rich 160 x 80 display Dual 10/100 Mbit/s switched Ethernet ports Works with IEEE 802.3af Power or Cisco Power over Ethernet with optional accessory cable (Feature is built into Polycom SoundPoint IP 601) External Power Adapter Included 4 context-sensitive soft keys Headset support included Full duplex speakerphone Enhanced productivity An intuitive user interface offers dedicated, one button access to common telephony features, and an information-rich graphical LCD display delivers content for messaging, call information, directory access, and applications. Suitable for everyday users, the SoundPoint IP 501 offers superb voice quality when used with a headset, handset or in hands-free speakerphone mode. Polycom industry-leading sound quality implemented in the SoundPoint IP 501 enhances the productivity of your business phone calls, because you will spend less time trying to understand what other people are saying, and more time communicating with them. An enterprise-grade IP telephone for Polycom unified collaborative communications solutions With integrated video, voice, data, and Web capabilities, Polycom offers the only solution that gives you an easy way to connect, conference, and collaborate any way you want. It's our commitment to making distance communications as natural and interactive as being there. Work faster, smarter, and better with the SoundPoint IP 501 and Polycom's integrated communication solutions. Benefits Proven - Polycom is a leading independent supplier of standards-based award winning IP telephones Acoustic Clarity Technology - Polycom's legendary technology that provides exceptional sound quality and allows for simultaneous natural conversation (full duplex) Flexibility - Choice between handset, headset, or natural two-way (fullduplex) speakerphone mode and choice of protocols and Technology Partner solutions Easy-to-use - 12 dedicated feature keys and 4 context-sensitive soft keys; 160x80 pixel graphical grayscale LCD Advanced functionality for SIP - HTTPS secure provisioning** - Enhanced call handling** - Instant messaging Choice of powering options - Support for AC power (included) and Power over Ethernet options (sold separately)