watch this one, page-22

Yes, they will replace their existing network with the Quiktrak network. QTK have the sole licence for DSS spectrum in South Africa and if you read the announcements carefully you will notice.
QUOTE
QuikTrak’s DSSS technology platform has a number of distinct advantages over traditional wired or RF
based security monitoring systems. These advantages include:
• Impossible to jam signal which improves security
• Bi-directional communications allows for health check poling and system upgrades and remote
activation/resetting
• National frequency removes the inefficiencies surrounding multiple frequency/location based
networks
• QuikTrak’s patented location and tracking technology

Also you should NOTE ( back up communications and power generation)
QUOTE

"The newly released 3rd Generation Control/Processing (C/P) Site platform has been relocated at a secure
hosted centre with back up communications and power generation."


This is very important in South Africa with power blackouts taking place regularly.
http://articles.latimes.com/2008/feb/03/world/fg-power3
And in one of the world's worst crime capitals, residents' electric fences, gates and high-tech alarm systems don't work when the power is off. One woman was held up at gunpoint outside her stalled gate.