The Cisco SPA500S Expansion Module is part of the Cisco Small Business Pro Series and designed for use with the Cisco SPA500 Series IP Phones. It is an ideal solution for small businesses wanting to simplify incoming call handling by quickly directing calls to the requested party and also to monitor line status from a central location.The attendant console easily attaches to a SPA500 Series IP Phone, providing 32 programmable speed-dial or direct station select (DSS) buttons, each illuminating the line's status (idle, ringing, busy, or null) via the BLF. Incoming calls can immediately be transferred to the proper location with the push of a button assigned to the extension.