title: SIM808 Error 601 Network Error
body: <p>I am using the SIM808 module with a sim card on the Ting network. I keep getting the 601 error when trying to post data to a website. What am I doing wrong. The AT commands I am sending are below responses begin with ></p>
  
  <pre><code>AT+CREG?
  &gt;+CREG: 0,1
  &gt;OK
  AT+CIPSHUT
  &gt;SHUT OK
  AT+CGATT=1
  &gt;OK
  AT+SAPBR=3,1,"CONTYPE","GPRS"
  &gt;OK
  AT+SAPBR=3,1,"APN","wholesale"
  &gt;OK
  AT+CSTT="wholesale"
  &gt;OK
  AT+SAPBR=1,1
  &gt;OK
  AT+CIICR
  &gt;OK
  AT+SAPBR=2,1
  &gt;+SAPBR: 1,1,"162.168.167.120"
  &gt;OK
  
  AT+HTTPINIT
  &gt;OK
  AT+HTTPPARA="CID",1
  &gt;OK
  AT+HTTPPARA="UA","SIMCom_MODULE"
  &gt;OK
  AT+HTTPPARA="URL","http://posttestserver.com/post.php"
  &gt;OK
  AT+HTTPPARA="REDIR",1
  &gt;OK
  AT+HTTPSSL=1
  &gt;OK
  AT+HTTPDATA=22, 10000
  &gt;DOWNLOAD
  --&gt;this is post data&lt;--
  &gt;OK
  AT+HTTPACTION=1
  &gt;OK
  &gt;+HTTPACTION: 1,601,0
  AT+HTTPREAD
  &gt;OK
  </code></pre>