Polycom VVX 250 Business IP Phone - HD Voice, 4 Line VoIP Desk Phone with Ethernet Port (Power Adapter Sold Separately) - Ideal for Office, Call Center & Remote Work

2.8" color display (320 x 240 pixels)

4 lines (programmable line keys)

4 context-sensitive soft keys

4-way navigation cluster

Fixed feature buttons include speakerphone, headset, mute, hold, volume up/down, transfer

Message waiting indicator

Dual port 10/100/1000 Gigabit Ethernet switch

Dedicated RJ-9 headset port

Single USB 2.0 port for storage and media applications; can also be used with Plantronics Bluetooth wireless headsets equipped with a BT300 or BT600 USB-A Bluetooth dongle

SIP protocol support