• On October 5, 2011, several rural local exchange carriers (LECs), including Chariton Valley Telephone Corporation, Choctaw Telephone Company, Mid-Missouri Telephone Company, and MoKAN Dial, Inc., petitioned the Missouri Public Service Commission to investigate call completion problems experienced by rural carriers in Missouri. The LECs assert that they have received an increasing number of complaints over the last eight to twelve months concerning long-distance calls that fail to complete. They complain of calls that fail to ring for the calling party, of pre-recorded messages stating the call could not be routed, and of low-quality service such as calls in which one party cannot hear the other. The rural LECs accuse least-cost routers of employing questionable techniques to avoid delivering calls to high-cost exchanges, including by establishing improper routing tables and sending calls through low-quality facilities or congested routes. The carriers stated in their petition that a “Missouri PSC investigation would allow the Missouri PSC to determine the extent of the problem in Missouri and examine possible causes of the problems. This information would be useful both to the FCC and to any future state-specific actions that the Missouri PSC may wish to consider.” Docket No. No. TO-2012-0104.