BC660 AT+QISTATE response error

After I have woken the BC660 module I send

AT+QISTATE?
The response is 2 OK.
<Ok
<Ok
I have previously opened a socket using:
AT+QIOPEN=0,0,“UDP”,“in..”,1337,0,1
<+QIOPEN: 0,0
Why do I get OK twice in response but no +QISTATE as expected.