Abstract:
The Direct Internet Access System (DIAS), jointly developed by Banyan Networks and TeNeT Group, liT Madras, allows telecom service providers to provide high bandwidth Internet access to residential and corporate . subscribers, in addition to voice services, without any changes to the existing cabling infrastructure. In contrast to current residential PSTN (Public Switched Telephone Network) and ISDN (Integrated Switched Digital Network) dial-up access, the DIAS provides an Always On Internet Access that is permanently available at the customers premises. Using Digital Subscriber Loop (DSL) techniques, seamless voice and data connectivity is provided to the customer over the same pair of copper wires. Implementation of this system is often done using the existing cables. All that is required is the installation of the IAN (Integrated Access Node) at the Telephone exchange and a DSU (Digital Subscriber Unit) at the customer premises