- Line Keys – 2 lines with up to 2 calls per line
- Speaker Phone – Superb sound quality and full-duplex speakerphone performance with Clarity by Polycom acoustic technology
- Ethernet Connectivity – Single 10/100 Ethernet portSoundPoint IP 321.
- Display Type – LCD graphical 102 x 33-pixel
- Compatible Platforms – SIP features and Interoperability with leading IP PBX and Softswitch platforms
- Headset Support – Dedicated 2.5-mm headset port compatible with most monaural mobile phone headsets.
- Contents – SoundPoint IP 321 console, Handset with handset cord, Base stand, Network (LAN) cable, External universal input AC adapter (24V DC @ 500mA), Quick Start Guide and Product registration card.
- Warranty – 1 year
- Includes power supply and VQMon