The U.S. Coast Guard has seen an uptick in the number of fake distress calls it has received in recent months and is looking to counter the problem with voice recognition technology, the Verge reported. Tasked with law enforcement and search and rescue missions in both domestic and international waters, fielding prank calls has become costly for the Coast Guard since it has to respond by deploying aircraft and clearing airspace for its mission. In response to the pranks, which have been happening nearly every day in recent months, the Coast Guard is planning to adopt voice recognition software to identify the phony callers. The fake calls come in through the Coast Guard's VHF radio channel, essentially the maritime version of 911. Unlike a typical phone call, the radio communications do not have any identifying information like a phone number -- and tracking the source of the transmission presents a number of challenges.