A system for gradually implementing network services to end users includes substantially redundant first and second control networks, connectable to the end users through a routable communications network. The first control network provides a first service capability to all the end users. The second control network provides a second service capability to a first portion of the end users, the second service capability replacing the first service capability of the first portion of the end users. The second control network subsequently provides the second service capability to a second portion of the end users, while continuing to provide the second service capability to the first portion, the second service capability replacing the first service capability of the second portion of the end users. The second service capability provided to the second portion of the end users may include revisions based on feedback from the first portion of end users.