India, Nov. 25 -- Nokia announced the successful upgrade of RailTel's DWDM National Long-Distance (NLD) network, undertaken in collaboration with its authorized partners. Nokia has deployed RailTel's Carrier-Grade NAT (CG-NAT) and metro optical transport network across India. These initiatives collectively address the growing demand for high-speed, resilient connectivity, driving operational efficiency and reducing costs.Leveraging Nokia's 1830 Photonic Service Switch (PSS) and advanced transponder technology, the enhanced network achieves a substantial increase in transport capacity while minimizing cost per bit. By reutilizing RailTel's existing infrastructure and previously unused channel spectrum. The deployment also introduces high-cap...