An industrial revolution: Solving rooftop access control solutions for Telcos in Singapore. A step towards Singapore’s smart nation initiative. A population of 5.6 million, with estimated 4.83 million smartphone users, more than 82% internet penetration; all within 721.5 km2. Singapore has become one of the most I.T. demanding nation with heavy investments on cashless payment systems, driverless cars, green energy etc. This requires reliable, fast and secure mobile network in