NB-IoT of Vodafone NL in Greece

Hello,
I m new in NB-IoT & Sodaq board. I have the Sodaq Sara AFF R410M board. I follow the instructions of link http://support.sodaq.com/sodaq-one/sodaq-sara-r410m/ . I run the code that recommends this link and after that i run the commands for Vodafone NL AT :
AT+URAT=8
AT+URAT?
AT+CMEE=2
AT+CGDCONT=1,“IP”,“nb.inetd.gdsp”
AT+CGDCONT?
AT+CFUN=1
AT+COPS=1,2,“20404”
AT+CSQ
AT+CREG=2
AT+CREG?
AT+CGPADDR
AT+USOCR=17
AT+USOST=0,“37.97.216.22”,3000,4,“Data”
AT+USOCL=0

The responce i get is the below :
AT+URAT=8
OK
AT+URAT?
+URAT: 8
OK
AT+CMEE=2
OK
AT+CGDCONT=1,“IP”,“nb.inetd.gdsp”
OK
AT+CGDCONT?
+CGDCONT: 1,“IP”,“nb.inetd.gdsp”,“0.0.0.0”,0,0,0,0
OK
AT+CFUN=1
OK
AT+COPS=1,2,“20404”
OK
AT+CREG=2
OK
AT+CREG?
+CREG: 2,0
OK
AT+CGPADDR
+CGPADDR: 1,0.0.0.0
OK
AT+USOCR=17
+CME ERROR: No connection to phone
AT+USOST=0,“37.97.216.22”,3000,4,“Data”
+CME ERROR: Operation not allowed
AT+USOCL=0
+CME ERROR: Operation not allowed

Did anyone know :
1.why cannot connect to the phone
2 why the responce of AT+CGDCONT? is 1,“IP”,“nb.inetd.gdsp”,“0.0.0.0”,0,0,0,0. It shouldnt be “0.0.0.0” but something like 1,“IP”,“web.omnitel.it”,“91.80.140.199”,0,0.
3.Why +CME ERROR: Operation not allowed
I have a Vodafone Sim Card and i am in an university in a town of Greece, where vodafone supposed has an antenna for NB-IoT network.

Thank you