Information & 

COMMUNICATION TECHNOLOGY

Specifically, these are:
The planning, construction supervision and support of low-current technical stage systems, such as stage management and stage communication systems, TV, video and audio systems, text title systems. 

The planning, construction supervision and support of low-current cable constructions in the area of stage and building services. 

The planning, construction supervision, support and operation of security systems, such as alarm and fire alarm systems, in the field of building services. 

Planning, construction supervision, support and operation of telephone systems, including network design and switching technology.