The affordable compact MultiModemZDX desktop modem delivers high-speed data transfers and faxing capabilities making it ideal for the mainstream PC/Macintosh-user market. It supports asynchronous equipment over dial-up lines, handles voice mail and full-duplex speaker phone with voice models, supports Class 1 and Class 2 fax commands (most models), stores phone numbers for automatic dialing, answers calls and detects rate automatically. It features a small footprint and stackable design and supports custom installations with features like 11-bit support, Multi-Tech command set, and remote configuration (depending on model).