Unified Communications – GRP2650 Product Description GRP2650 6 SIP accounts, 14 lines Integrated dual-band Wi-Fi 802.11ac (2.4Ghz & 5Ghz) Includes built-in PoE Swappable faceplates Compatible with GBX20 Extension Module See also different: Business Conferencing – GAC2500 IP PBX Solutions – SoftwareUCM GXV IP Video Phones – GXV3470 GXP Series IP Phones – GXP2160