It's no surprise that more than half of large organizations don't know their exact communications expenditures. Monthly fixed and mobile telecom invoices are detailed, complex and, for some companies, hundreds of pages in length. The intricacies of ever-changing inventory, hundreds of thousands of rate plans, and complex terms and conditions result in "rubber-stamped" invoices that, in many cases, incur penalties due to late payments. With Aberdeen, a prominent industry research firm, estimating that 7 to 12 percent of all communications invoices are in error, clearly businesses are leaving money on the table.