Security on-Line Systems Logo Security on-Line Systems Established 1974                    
22 E. Mt. Pleasant Ave.                    
Ambler, PA 19002-4227                    
P: 800-628-9190                    
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Cellular Backup

When standard phone lines are not enough or not available we have cellular systems to report your emergencies. These are very secure and fully supervised.

If you are interested a cellular reporting system please submit our Request for Proposal Form, and we'll respond to your request within 24 hours.
Security On-Line Systems - Safe and Secure