Pb with arduino GSM900 GPRS SHield

[texouille]

Hello,

no ringing, just entered onto the voicemail when i do call the number.

As if the simcard is off.


Regards,

[texouille]

Hi Again

yes the sim card is ok, (i have several sim card, all tested ok), and i can read info from the simcard using AT commands, as well i do have a similar GSM shield with sim900 and it works perfectly.

I am able to use the simcard onto a real mobile phone as well and the PIN code is disabled.


So i really do think that is not sim card problem (i have one simcard for each operator in france) and in my area, the gsm signal is ok for each one.


Regards,

[texouille]

SO,

so far,

i do not have any solution.


Thanks for the help anyway. I really do think there is a problem somewhere

regards

[hotkebab99]

Hello,
The same for me with this shield. I have no network registration.
I have tried with several SIM cards from different operators. I have tried too with an external power supply. I can send AT commands. I have answers but no network detected.
Same as you.
I have no idea...

[CCONWAY100]

Hi - I have exactly the same issue from a shield purchased last week.
-----
AT
OK
AT+CREG?
+CREG: 0,0

OK
AT+COPS=?
+COPS: ,,(0,1,4),(0,2)

OK
ATD07595xxxxxx;
NO DIALTONE

-----

The SIM works in my phone, so it not a SIM issue.

ideas please?

Tks,
Chris