Power transmission system is a transmission system project of 230kV of EDC (Electricite Du Cambodge) between Kampong Cham and Kratie in Cambodia was assigned to Pestech Cambodia Limited (PCL). And PABX system was handed to VISCO to accomplish the system.

VISCO designs / supplies / installs / maintains 

- The PABX system. 

Completion: November, 2017.