Leased Line
Internet Service


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Leased Line Internet Service is a permanent and dedicated connection to the Internet which is always available .

It is scalable in terms of band width and is highly reliable compared to dial-up internet access.


Calcutta  Telephones  is  offering  Internet Services on  a nation wide Platform Called National Internet Backbone (NIB) . Kolkata Node is one  of  the  Major  Node of National Internet Backbone.                                         

Features of NIB (National Internet backbone)    

  •   Total International Bandwidth of 204 Mbps .                  

  •   Internal Bandwidth exceeds total of 1000 Mbps .

  •   Alternate Routing and High Redundancy .

  •   Multi homing international access.

  •   Total POPs ( Point of Presence ) more than 450 cities all over India at present. 

  •   One of the largest internet network .