DSX from NEC takes the lead with state-of-the-art innovations sure to make your business communications more efficient, profitable, and enjoyable. The DSX40 is a compact, wall-mountable, more economical member of the DSX family that offers many of the features and options of the larger DSX-80/160 in a smaller, self-contained cabinet. In its off-the-shelf basic configuration, DSX40 supports 4 CO (outside) lines with Caller ID, 8 DSX digital keyset extensions, and 2 analog (single line) extensions with power failure. The 22-Button Display Telephone offers a large display and a built-in speakerphone making this the most economical option without sacrificing convenience. Built-in Caller ID Caller ID (CID) capability is built into every DSX system. With CID, you can identify incoming callers before the call is answered. The caller’s name and number (if available) will appear simultaneously in the display. (requires caller id service from telephone provider) Intramail Voicemail The ability to add voice mail is built into the system and only requires an IntraMail compact flash card to activate. IntraMail is a full-featured Voice Mail Auto Attendant system that will transfer incoming callers and record Voice Mail messages.