The Cisco IAD2400 family is Cisco's premier line of Smart Integrated Access Devices. The 2400 family offers the best-in-class integration of data and toll-quality analog or digital voice services for a customer-premises (CP) solution. Designed to bridge the current and emerging multiservice needs of competitive local exchange carriers (CLECs) and other service providers, the Cisco IAD2400 family operates in both Class 5 switch-access and Class 5 switch-bypass architectures.

The Cisco IAD2420 is the first product in Cisco's portfolio of Smart Integrated Access Devices. The IAD2420 features the first-of-its-kind simple network-enabled autoprovisioning (SNAP) technology, a next-generation autoinstallation mechanism designed for faster service turn-up, configuration, and remote updates. When used with Cisco Configuration Express, service providers can order, preconfigure, and ship the Cisco IAD2400 Series products directly to end customers, reducing the costs of warehousing, shipping, and manual intervention.

The Cisco IAD2420 supports voice over IP (VoIP), voice over ATM (VoATM), proven quality-of-service (QoS) tools, multiple call-control protocols (MGCP/SGCP), diverse CODECs, IP routing, and security features.