Supports 3 lines, 3 SIP accounts and 4-way voice conferencing 2.8 inch (320×240) color-screen LCD Dual Gigabit ports, integrated PoE
Supports 4 lines, 4 SIP accounts and 5-way voice conferencing HD audio on speakerphone and handset 5 programmable context-sensitive soft keys
Supports 6 lines, 6 SIP accounts and 6-way voice conferencing 4.3 inch (480×272) color-screen LCD Dual Gigabit ports, integrated PoE
240×120 pixel backlit graphical LCD display Gigabit Ethernet ports with integrated PoE 4 line keys with up to 4 SIP accounts.
6 dual-color line keys (with 6 SIP accounts) 4 XML programmable context-sensitive soft keys. Up to 5-way conferencing
2 SIP accounts, 2 line keys, 3-way conferencing, 3 XML programmable context-sensitive soft keys HD audio on speakerphone and handset