Yesterday (June 26, 2015), the NBTC and mobile phone network service providers inspected mobile phone signals to see if they encroached on Poipet.
As a parallel test, the Thai PBS news team had Thais still working in Poipet try using the phone signal from the Thai service provider to call the news team at the Khlong Luek checkpoint. It was found that within a distance of 200-300 meters, if they were in an open area or on a tall building, they could still make phone calls. ดูหนัง24