Intruder Alarms DualCom GPRS 27/05/2010 / 26/05/2010 by blogadmin CSL DualCom GPRS. CSL have always actively challenged Redcare when it comes to dual path signalling solutions. With Dualcom GPRS they have produced a hardware platform that can monitor any grade of security installation. Each grade has a sliding scale of charges to ensure you only pay for the monitoring you need depending on the grade […] Read more » DualCom redcare Vodaphone