Unison Communications
Number: 011 797 3000
Highway Communications
Number: 011 321 0333
Dialogue Communications
Number: 086 008 9089
Advanced Communications
Number: 044 870 8847
Spindle Communications Cc
Number: 011 880 0364
Grintek Communications Systems
Number: 021 715 8460
Communication Hospital Systems
Number: 031 702 5763