India, July 9 -- Telecall, a Rio de Janeiro telecommunications services operator, is investing in expanded coverage and increased transmission capacity of its DWDM (Dense Wavelength Division Multiplexing) optical networks with transmission rates of 100 and 200 Gb/s in the metropolitan region of Rio de Janeiro. And it is counting on Padtec solutions to light up its new optical routes, which adds more than 1,000 kilometers and covers important cities in Rio de Janeiro and So Paulo. The plans of the provider, for the coming years, also include the expansion of its network optics in the Brazil's Southeast region. For the new routes on one of Telecall's optical rings in Rio de Janeiro, Padtec supplied 100 and 200 Gb/s transponders (per optical...