I support analog sx-200's, have spare parts & customers under maint. contracts. I am not well liked in the area because I will not tell customers with old equipment who refuse to upgrade to 'take a hike'. Hotels these days just want to keep the old stuff running & I am happy to oblige. I support NEC 2400 IMS, Hitachi 5000 & of course any Mitel, even SX-20.