DESC: The USRobotics 56K Performance Pro Modem is controller-based for superior performance - with powerful communication processing functions built right into the modem itself. Quick Connect reduces your connection time to get you online quicker, and V.PCM Upstream provides 50% greater upload speeds - perfect for sending e-mail messages with large attachments. Internet Call Notification lets you screen incoming voice calls while online, so you won t miss the important ones, and Modem on Hold allows you to answer calls without losing your Internet connection - no second phone line is needed!