Network: Any physical infrastructure network that forms a telecom-related network and occupies physical space in/on the ground.
About
Viettel FTTH network. Viettel operates over 365,000 km of optical fiber across Vietnam, offering FTTH packages from 300 Mbps to 1 Gbps with symmetric speeds; primary fixed broadband service (Source), (Source). Viettel deployed commercial FTTH on 15 May 2009 after trials in Hanoi, Da Nang and HCMC (Source), (Source).