The Polycom SoundPoint IP 601 VoIP 6 line phone delivers unsurpassed voice quality, an advanced feature set, and the expandability to support up to three SoundPoint IP 601 Expansion Modules.
6 lines (12 lines with the Expansion Module) - 320 x 160 pixel grayscale graphical LCD - Full-duplex speakerphone with Acoustic Clarify Technology - Advanced functionality: enhanced call handling, security, and presence - SoundPoint IP 601 Expansion Module support - 3 max - Dual switched 10/100 Mbps Ethernet ports - Built-in auto-sensing dual-mode PoE support - SIP