550 nodes available at almost all the district headquarters. NIB is connected to VSNL Gateways at 6 locations i.e. Mumbai, Kolkata, New Delhi, Bangalore, Chennai and Ernakulam. In today’s globally networked society through internet, there is always increasing demand for higher capacity systems and more bandwidth for new services & networking, hence new various types of access technologies for broadband have to be found for this exponential growth. Prior to broadband service, PSTN dialup (including ISDN) was the main technique to get Internet access. For high speed, only alternative was lease line bandwidth. Even today, PSTN dialup service is prevalent. BSNL offers many options for dialup Internet account such as Sancharnet (prepaid) and Netone (CLI based) service. Sancharnet is an all India roaming account i.e. user can use it from any landline in India. The dialup charges are payable on landline whereas, Internet usage gets deducted from Sancharnet account. The download speed depends on quality of PSTN line and goes up to 56Kbps limited by capacity of modem used. For Internet access, BSNL also offers Unlimited plan on postpaid CDMA and usage based for prepaid CDMA service. Broadband refers to a connection that has capacity to transmit large amount of data at high speed. Presently a connection having download speeds of 256 kbps or more is classified as broadband. When connected to the Internet broadband connection allows surfing or downloading much faster than a dial-up or any other narrowband connections. BSNL offers 2 Mbps minimum download speed for its Broadband connections. Requirement for providing Broad Band connection 1. Personal Computer 2. ADSL Modem 3. Land Line Connection 4. Splitter for separating telephone from Personal computer. Broadband is an „always-on‟ data connection that is able to support interactive services including Internet access and has the capability of the minimum download speed of 256 kilo bits per second (kbps) to an individual subscriber. BSNL has placed Purchase Order to TCIL consortium against tender for turnkey implementation of various network components required for the National Internet Backbone (NIB, Phase II (Project 3) for turnkey implementation of Messaging and Storage Service platform, Operation Support System (OSS) & Billing, Security System and Enterprise Management System which are to be implemented in BSNL, data centers in four cities viz. Bangalore (Main, Delhi, Mumbai and Pune (Disaster Recovery. The turnkey implementation involves Planning, Engineering, Supply, Installation and Testing and Commissioning. The turnkey implementation also involves Operations & Maintenance support on X basis for the network fora period of 6 months after commissioning of the network.
