Polycom SoundPoint IP601SIP 6-Line Conferencing Phone With Power Adapter. Polycom SoundPoint is a Voice over Internet Protocol Phone that features SIP (Session Initiation Protocol) and Acoustic Clarity Technology to deliver the superb sound quality for which Polycom is known.

Manufacturer: Polycom
Model Number: SoundPoint IP 601 SIP

Features:

Full-duplex 6-Line VoIP conference phone (up to 12 lines if you add the expansion module 2200-11700-025)
3-Way Conferencing
Power-over-Ethernet (PoE) support
Caller ID with call waiting
Headset Jack, Conference, Transfer, Hold, Speakerphone, Redial, Headset, Hearing Aid Compatible, and DND
LAN port and PC port