The SIP phone GRANDSTREAM GXP-1628 2 SIP accounts, 2 line keys, 3-way conferencing, 3 XML programmable context-sensitive soft keys HD audio on speakerphone and handset Dual-switched Gigabit ports, integrated PoE 8 dual-colored BLF/speed dial keys EHS support for Plantronics headsets Up to 1000 contacts, call history up to 200 records