Itead 3G Shield TCP connexion

Hi fellows,

I have a few of these shields to build a telemetry project at work for SMS alarm reporting and sending some data on a web page.

SMS work great, the shields are on top of arduino Unos and it work fine, only i just can't open a TCP/UDP or HTTP socket, it seems that the AT+CGSOCKCONT=1,''IP'',''APN name''

Don't work for me, Her's my detailed log:

AT+GMR
+GMR: 1575B07SIM5216J

AT+CPIN?
+CPIN: READY
ok

AT+CSQ
+AT+CSQ: 19,99
ok

AT+CREG?
+CREG:0,1
ok
The device is registered for home network

AT+CGACT?
+CGACT:1.0
ok

AT+CMEE=1
ok

AT+CGATT=1
ok

connecting to PDP profile 1:

AT+CGACT1,1
ok
connection is successfull

AT+CGPADDR=1
+CGPADDR: 1,''10.168.74.190''
ok

AT+CGDCONT?
+CGDCONT:1,''IP'',''sp.telus.com'',''0.0.0.0'',0,0
ok
following conexion profiles are available,

CIP->1
PDP Type->IP
PDP Address->0.0.0.0
Data Compression->0
Header Comression->0

AT+CGSOCKCONT=1,''IP'',''sp.telus.com''
ERROR

AT+CGSOCKCONT?
+CGSOCKCONT: 1,''IP'','''',''0.0.0.0''0.0
+CGSOCKCONT: 2,''IP'','''',''0.0.0.0''0.0
+CGSOCKCONT: 2,''IP'','''',''0.0.0.0''0.0
+CGSOCKCONT: 4,''IP'','''',''0.0.0.0''0.0
+CGSOCKCONT: 5,''IP'','''',''0.0.0.0''0.0
+CGSOCKCONT: 6,''IP'','''',''0.0.0.0''0.0
+CGSOCKCONT: 7,''IP'','''',''0.0.0.0''0.0
+CGSOCKCONT: 8,''IP'','''',''0.0.0.0''0.0
+CGSOCKCONT: 9,''IP'','''',''0.0.0.0''0.0
+CGSOCKCONT: 10,''IP'','''',''0.0.0.0''0.0
+CGSOCKCONT: 11,''IP'','''',''0.0.0.0''0.0
+CGSOCKCONT: 12,''IP'','''',''0.0.0.0''0.0
+CGSOCKCONT: 13,''IP'','''',''0.0.0.0''0.0
+CGSOCKCONT: 14,''IP'','''',''0.0.0.0''0.0
+CGSOCKCONT: 15,''IP'','''',''0.0.0.0''0.0
+CGSOCKCONT: 16,''IP'','''',''0.0.0.0''0.0

AT+NETOPEN
ok
+NETOPEN=1 (close)

AT+NETOPEN=0
+IP ERROR:invalid parameter

AT+IPADDR
+IP ERROR: Network not opened

i tried with another sim card from another provider, same result.

Both sim cards work in my phone, unlocked and browsing the web.

I can use the shield as a modem and browse the web.

I have 10 shields and 10 sim cards, all giving me same results.

The APN are the right one.

I have a data plan on these cards, no user name or password required.

Itead support is very poor and no one seems to ever get this board connected to internet. Does anybody here got this thing working?

Thanks for your help.