As a Communication Infrastructure Maintainer, you will need to master following:

• ICT communications protocols
• ICT network cable limitations
• ICT network routing
• ICT network security risks
• assess telecommunication infrastructure issues
• concepts of telecommunications
• install electronic communication equipment
• monitor communication channels' performance
• operate digging construction equipment
• procurement of ICT network equipment
• telecommunication trunking

More generally, a communication infrastructure maintainer is also versed in:

• ICT networking hardware
• install low voltage wiring
• provide technical documentation

It also helps to know the following:

• Cisco
• implement ICT safety policies
• implement a firewall
• implement a virtual private network
• implement anti-virus software
• install cable TV services
• solve location and navigation problems by using GPS tools
• inspect cables
• seal wires
• splice cable
• use back-up and recovery tools