Budget MultiModemZDX compact desktop modem provides high speed data transfer and fax capabilities make it ideal for basic PC / Macintosh-user market. It supports asynchronous equipment over Dial-Up Line, handles voice mail and full duplex speaker phone with voice models, supports Class 1 and Class 2 fax commands (most models), store phone numbers for automatic dialing, answer calls and determines rates automatically. He has a small footprint and stackable design and supports custom installations with features like 11-bit support, Multi-Tech team recruitment, and remote configuration.