Grandstream GXP2130 Bundle of 4 HD Enterprise IP phone 3 lines Color LCD PoE Supports 3 lines, 3 SIP accounts and 4-way voice conferencing 2.8 inch (320x240) color-screen LCD Dual Gigabit ports, integrated PoE 8 dual-colored BLF/speed-dial keys HD audio on speakerphone and handset