Grandstream GXP2170, 6 SIP, 12 Lines, PoE, Black//12 lines, 6 SIP accounts, 5 soft keys and 5-way voice conferencing48 on-screen digitally customizable BLF/speed-dial keys4.3 inch (480x272) color-screen LCDDual Gigabit ports, integrated PoEIntegrated BluetoothSupports up to four GXP2200EXT Modules for BLF/speed-dial access to up to 160 contactshttps://www.grandstream.com/products/ip-voice-telephony-gxp-series-ip-phones/gxp-series-high-end-ip-phones/product/gxp2170