Symphony clients use Inventory to track their voice, data, wireless, pagers and network equipment, and a variety of IT equipment, software, and services allowing them to manage a complete view of their indirect expense assets with one single centralized system. During the monthly billing cycle, all vendor feeds and usage costing routines validate their charges against this Inventory. Service orders automatically update the Inventory ensuring its accuracy. And Billing accesses Inventory to retrieve any monthly recurring charges (MRCs).