Cisco offers a wide variety of connectivity, expansion and upgrade modules to accommodate the range of application needs in customer networks. The network modules assure customers that they can choose a connectivity solution that fits their requirements. As modular components, they are easily and inexpensively field upgradeable as customer requirements change.In case you need a Voice-over-IP (VoIP) or fax-relay application this bundle will help you achieve the aim. The Cisco AS5300 can handle modems and voice in the same chassis and mixed bundles are available for this application. This bundle includes a 30-voice with Carrier, 60 MICA Modems with Carrier, Quad + E1 Card.