The upgrade involves migrating from GPON to Nokia's Lightspan Optical Line Terminals (OLTs) and Altiplano Access Controller, which will enhance network automation and improve service reliability. The deployment will cover key locations, including Phnom Penh, Siem Reap, and other. Nokia and Cellcard upgrade residential fiber broadband network in Cambodia Cellcard deploys Nokia's next-generation XGS-PON solution, providing multi-gigabit broadband access to homes and businesses across Cambodia. This modernisation will enable CAMGSM, commercially known as Cellcard, to deliver internet speeds up to 10 Gbps to customers.