System Booking Network Management (SBNM)...
Eastern Telecom Region
with headquarters at Kolkata operates and maintains different types of transmission links in Eastern and North Eastern India including Andaman and Nicobar Islands. It ensures uninterrupted telecom connectivity within Eastern Region as well as to other parts of the Country. It provides communication to different parts of region using optical fibre, microwave radio relay and satellite communication systems. ..
Introduction to SBNM
SBNM Data Format Download here..