On 12th March 2021, Unified National Networks (UNN) detected an outage that affected both mobile voice and data services across the nation, affecting more than 100,000 subscribers. The teams that UNN deployed swiftly upon its detection found out that the incident was caused by fibre cut.

Since mobile communication was first introduced in Brunei Darussalam by Jabatan Telekom Brunei (JTB) in 1989 using Advanced Mobile Phone System (AMPS), it has changed the way we communicate dramatically as opposed to the alternative fixed line telephone.  Mobile phones enable users to communicate while on the move and its popularity has dominated the world.