title: Java String and Hex character representation
body: <p>I am trying to send a square bracket to a phone using logica smpp 1.3.7.
  I use dataCodingSetting of 3 - as per the network I asked about this.
  They advised that I need to package my message as below:</p>
  
  <pre><code>  You want to send ASCII                Send the following
  
    Character  Decimal  Hex              Character    Hex     Decimal
       [         91     5B                &lt;ESC&gt;&lt;     1B 3C     27 60
  </code></pre>
  
  <p>My question is, I have no clue what this character is: ESC &lt;
  And if I put just the Hex value of 1B 3C it comes out on the phone as exactly that: 1B 3C</p>