News Celcom Suffers Nationwide Voice Network Outage Due to “Troubled Network Upgrade” by Vijandren June 13, 2017
Celcom Celcom Begins Network Modernisation Exercise In Klang Valley; Expect Service Interruptions During Working Hours by Farhan June 13, 2016
Celcom Celcom to Improve Klang Valley Network Performance by Using Nokia’s Optimization Services by Pang Tun Yau June 4, 2014
