title: Send SMS to multiple recipients using Arduino AT commands
body: <p>I have been working on sending SMS to multiple recipients through AT commands. I have been modifying the code that I attached to this post.</p>
  
  <p>Last night I got to know from <a href="http://www.developershome.com/sms/sendSmsByAtCommands.asp" rel="nofollow">this site here</a>     that we ought to use the AT+CMSS in order to send multiple sms. And that it sends message from the sms storage area in sim. I tried through this way:</p>
  
  <pre><code>  gsm.print("AT+CMGF=1\r");
    delay(100);
    gsm.println("AT + CMSS=3,\"*********\"");
    gsm.println("AT + CMSS=3,\"***********\"");
    gsm.println("AT + CMSS=3,\"**********\"");
    delay(100);
    gsm.println((char)26);                       
    delay(100); 
    gsm.println();
    delay(5000);                                    
    gsmpower();
  </code></pre>
  
  <p>It's working for me but only sending message to the first number. Can you please suggest me the way to use AT+CMSS command?</p>