title: AT+CMGS returns ERROR 302
body: <p>I'm trying to send a SMS using AT commands and after typing the cellphone number it show the CMS: ERROR 302.</p>
  
  <p>What I'm doing:</p>
  
  <pre><code>AT
  
  OK
  
  AT+CMGF=1
  
  OK
  
  AT+CMGS="&lt;3 digit local area code&gt;&lt;7 digit cellphone number&gt;"&lt;Enter&gt;
  
  +CMS: ERROR 302
  </code></pre>
  
  <p>I've found this post: <a href="https://stackoverflow.com/questions/21522794/atcmgs-returns-error">AT+CMGS returns ERROR</a> but couldn't find a solution. Am I typing something wrong? I've changed SMS-encoding to GMS as the post describes.</p>