title: telnet stream unknown escape code
body: <p>I have a task that involves parsing telnet stream. All works well until my client receives unknown to me escape sequence <strong>ESC[15X</strong>. I have checked many documents explaining what do escape codes mean and should do, but none of them contained the one mentioned. When I test the escape code in terminal window it seems to not do anything. If anyone has a clue or knows where to look it up, it would help me greatly. </p>