TEF LINK Security Group Inc provides video surveillance design, sales and installation. Also other services are Burglary Detection, Security Fog, Monitoring Solutions, Access Control, and intercom units. Currently we are authorized dealers and installers for: Flash Fog Security Exacq Vision Certified Reseller / Installer Arecont Vision HD IP cameras SIGNAMAX Installation/Design Partner (Networks) Also we are members with: Canadian Security Association (CANASA) Cambridge Chamber of Commerce Our office is located at: Unit 103, Suite 2,18 Concession St, Cambridge, ON, N1R 2G5 (T) 1-877-375-9022, (P) 1-519-489-2683, (F) 1-966-451-1892