Vodafone SIM Not working with SIM900A Module, What could be the problem?

[Batang]

Off Topic but useful nonetheless here is the country list for the SIM900A version:

China, India, Singapore, Malaysia, Thailand, Indonesia, Cambodia, Vietnam, Laos, Burma, Brunei, Philippines, East Timor.

Cheers.

 

[xpress_embedo]

From where you have got this information.
And if it is so, then why my other sims are working properly for GPRS.

 

[prasanthreddy]

@xpress embedo

Can anyone please help me out setting up gprs connection using SIM900A, I am using aircel simcard, i am not understanding what would be the problem, i even tried with airtel but couldnt connect, Please help- me out

 

[xpress_embedo]

How you are connecting?
I mean to say with which device you are connecting.
Are you connecting to a TCP server.

 

[prasanthreddy]

How you are connecting?
I mean to say with which device you are connecting.
Are you connecting to a TCP server.

I basically want to connect to google spreadsheets, but i am not able to connect to internet it self, in the intital stages it self its reporting error! I am using arduino UNO, and the example file GSMclient.

Can you please guide me with the AT commands to connect to internet.

 

[xpress_embedo]

First use hyper-terminal to do what you want after that proceed to controller part.
And i dont have any idea how will you implement it.

- - - Updated - - -

Check this
https://www.edaboard.com/threads/219547/

 

[prasanthreddy]

First use hyper-terminal to do what you want after that proceed to controller part.
And i dont have any idea how will you implement it.

- - - Updated - - -

Check this
https://www.edaboard.com/threads/219547/

What mode should I use to access Google, client mode or server mode ?

 

[kushal nandanwar]

SMSsending("AT+CREG?\r\n");
delay_ms(450);
linefeeder(10);
delay_ms(250);
delay_ms(250);
delay_ms(250);
delay_ms(250);


SMSsending("AT+SAPBR=4,1");
delay_ms(450);
linefeeder(10);
delay_ms(250);
delay_ms(250);
delay_ms(250);
delay_ms(250);



SMSsending("AT+SAPBR=3,1,\"CONTYPE\",\"GPRS\"\r\n");
delay_ms(450);
linefeeder(10);
delay_ms(250);
delay_ms(250);
delay_ms(250);
delay_ms(250);



SMSsending("AT+SAPBR=3,1,\"APN\",\"internet\"\r\n");
delay_ms(450);
linefeeder(10);
delay_ms(250);
delay_ms(250);
delay_ms(250);
delay_ms(250);



SMSsending("AT+SAPBR=3,1,\"USER\",\ " \"\r\n");
delay_ms(450);
linefeeder(10);
delay_ms(250);
delay_ms(250);
delay_ms(250);
delay_ms(250);



SMSsending("AT+SAPBR=3,1,\"PWD\",\" \"\r\n");
delay_ms(450);
linefeeder(10);
delay_ms(250);
delay_ms(250);
delay_ms(250);
delay_ms(250);




SMSsending("AT+SAPBR=1,1\r\n");
delay_ms(450);
linefeeder(10);
delay_ms(250);
delay_ms(250);
delay_ms(250);
delay_ms(250);



SMSsending("AT+SAPBR=2,1\r\n");
delay_ms(450);
linefeeder(10);
delay_ms(250);
delay_ms(250);
delay_ms(250);
delay_ms(250);



SMSsending("AT+EMAILCID=1\r\n");
delay_ms(450);
linefeeder(10);
delay_ms(250);
delay_ms(250);
delay_ms(250);
delay_ms(250);


SMSsending("AT+EMAILTO=60\r\n");
delay_ms(450);
linefeeder(10);
delay_ms(250);
delay_ms(250);
delay_ms(250);
delay_ms(250);



SMSsending("AT+SMTPSRV=\"smtp.mail.yahoo.com\",25\r\n");
delay_ms(450);
linefeeder(10);
delay_ms(250);
delay_ms(250);
delay_ms(250);
delay_ms(250);



SMSsending("AT+SMTPAUTH=1,\"GPRS.xxxxxxx@yahoo.in\",\"xxxxxxx\"\r\n");
delay_ms(450);
linefeeder(10);
delay_ms(250);
delay_ms(250);
delay_ms(250);
delay_ms(250);



SMSsending("AT+SMTPFROM=\"gprs.xxxxxx@yahoo.in\",\"kushal\"\r\n");
delay_ms(450);
linefeeder(10);
delay_ms(250);
delay_ms(250);
delay_ms(250);
delay_ms(250);


SMSsending("AT+SMTPRCPT=0,0,\"xxxxxxx@yahoo.in\",\"kushal\"\r\n");
delay_ms(450);
linefeeder(10);
delay_ms(250);
delay_ms(250);
delay_ms(250);
delay_ms(250);



SMSsending("AT+SMTPSUB=\"TEST_GPRS\"\r\n");
delay_ms(450);
linefeeder(10);
delay_ms(250);
delay_ms(250);
delay_ms(250);
delay_ms(250);



SMSsending("AT+SMTPBODY\r\n");
delay_ms(450);
linefeeder(10);
delay_ms(450);
dis_cmd(0x01);

SMSsending("hello");
delay_ms(450);
linefeeder(10);
delay_ms(450);
linefeeder(26);
delay_ms(450);
delay_ms(450);
delay_ms(250);
delay_ms(250);


SMSsending("AT+SMTPSEND\r\n");
delay_ms(450);
linefeeder(10);
delay_ms(450);
delay_ms(250);
delay_ms(250);
I'm trying to send e-mail using SIM-900 module at my yahoo id ,but i'm not getting any replay on yahoo . pls find my code and fixed it if there is any problem in it . I'm using idea sim for e-mailing .I successfully transmitted SMS using this module so there is no problem with hardware .