#writeup
- upload the file to this website for DTMF decode http://dialabc.com/sound/detect/index.html
- got the 0,1 sequence 01001101 01001111 01000011 01010011 01000011 01010100 01000110 01111011 01100100 00110001 01000100 00110001 01000100 01010100 01001101 01000110 01111101 transform to ASCII got the flag
MOCSCTF{d1D1DTMF}