Abstract: Provided is a managed network service delivery system and method. The managed network service delivery system includes an IOC (Internetworking Operating Center) and a SCA (SAM (Security Activity Manager) Collector Agent) at at least one of a plurality of customer sites of a customer. The customer sites are connected to the IOC through a VPN (Virtual Private Network) or directly from a respective one of the SCAs to the IOC. The SCAs collect log and statistical information from equipment at a respective one of the customer sites and provide summary information to the IOC. The SCAs also perform queries regarding status of equipment and report to the IOC. The customer accesses reports from a web server at the IOC or through a PSTN (Public Switched Telephone Network) connection at the SCAs. A redundant connection, through the PSTN, between a SCA and the IOC provides a robust system for management, monitoring and security of the customer sites.