Used in excellent working conditions.
http://www.grandstream.com/index.php/products/ip-voice-telephony/ip-pbx-solutions/ucm61xx
Include extra:
2x Cisco SPA504G 4-Line IP Phone with 2-Port Switch, PoE
http://www.cisco.com/c/en/us/products/collateral/collaboration-endpoints/small-business-spa500-series-ip-phones/data_sheet_c78-548564.html