An order entry system communicates with the customer over a user interface and at the same time works with an automated installation system for installing network service. The order entry system prompts the customer to place a new service order. The service parameters of the new service order are passed to the installation system. The order entry system notifies the customer of the route and prompts the customer to add a service order for the route to the customer order. If the customer adds the service order to the customer order, the order entry system prompts the customer to reserve the service order or to submit an order for the service. If the customer reserves or submits an order for the service, the order entry system requests the installation system to design an actual communication line circuit to satisfy the order.