According to Khun Thess informed me that on 29 June 2015. The guest would like to call out of country (to Australia) around 5-10 minute at 19.00-20.00PM. After that, she had found that WINPAC report was shown nothing by using the international call. By the time, as I checked with our support (JURUDATA) from WINPAC. They mentioned that in that period, has found some error connection from their application