Grandstream UCM6204 IP PBX with 4 FXO+GXP2170 4-UNITS IP Phone The GXP2170 is a powerful enterprise-grade IP phone features up to 12 line keys/line appearances and 6 SIP accounts using a 4.3 inch color display LCD and full HD audio. The GXP2170 supports the fastest possible connection speeds with dual Gigabit network ports, features integrated PoE and includes built-in Bluetooth for syncing with mobile devices and Bluetooth headsets. UCM6204 - SMB IP PBX with 4 FXO and 2 FXS Ports UCM6204 - Dual Gigabit RJ45 ports with integrated PoE Plus (IEEE 802.3at-2009)