Problem in establishing GPRS connection to server

Hi,
Basically am trying to establish the GPRS connection to send data to my server and also receive data to my server. Programming it through a Raspberry pi. While I was in India the Airtel connection would work and data being sent and received, as I moved to Australia, I tried the same with Airtel on roaming but gives me AT + CIIR *PDP : DEACT, what does this mean ?? All the data and roaming are on. Apart from that, I did try the connection with Vodafone on the sim900 but it gets connected but fails to send and receive data. Keeping the codes below , help would be appreciated.

Subsequently changed the code to live.vodafone.com ... Gets connected but does not send data.

sunny_saha007 said:

Hi,
Basically am trying to establish the GPRS connection to send data to my server and also receive data to my server. Programming it through a Raspberry pi. While I was in India the Airtel connection would work and data being sent and received, as I moved to Australia, I tried the same with Airtel on roaming but gives me AT + CIIR *PDP : DEACT, what does this mean ?? All the data and roaming are on. Apart from that, I did try the connection with Vodafone on the sim900 but it gets connected but fails to send and receive data. Keeping the codes below , help would be appreciated.

Code:

def Gprs_Init_comm():
	ser.write("AT+CIPSHUT\r")
	sleep(2)
	ser.write("AT+CMGF=1\r")
	sleep(5)
	ser.write("AT+CIPMUX=0\r")
	sleep(5)
	ser.write("AT+CSTT=\"www.airtelgprs.com\",\"\",\"\"\r")
	sleep(7)
	ser.write("AT+CIICR\r")
	sleep(5)
	ser.write("AT+CIFSR\r")
	sleep(5)
	ser.write("AT+CIPSTART=\"TCP\",\"52.11.214.114\",\"85\"\r")
	sleep(8)

Subsequently changed the code to live.vodafone.com ... Gets connected but does not send data.

Click to expand...

5/9/2017 16:18:34.592 [TX] - AT<CR>

5/9/2017 16:18:34.601 [RX] - AT<CR>
<CR><LF>
OK<CR><LF>

5/9/2017 16:18:47.040 [TX] - AT+SAPBR=3,1,"Contype","GPRS"<CR>

5/9/2017 16:18:47.078 [RX] - AT+SAPBR=3,1,"Contype","GPRS"<CR>
<CR><LF>
OK<CR><LF>
<CR><LF>
Call Ready<CR><LF>

5/9/2017 16:18:48.960 [TX] - AT+SAPBR=3,1,"APN","www"<CR>

5/9/2017 16:18:48.993 [RX] - AT+SAPBR=3,1,"APN","www"<CR>
<CR><LF>
OK<CR><LF>
<CR><LF>
SMS Ready<CR><LF>

5/9/2017 16:18:52.440 [TX] - AT+SAPBR =1,1<CR>

5/9/2017 16:18:52.461 [RX] - AT+SAPBR =1,1<CR>
<CR><LF>
OK<CR><LF>

5/9/2017 16:20:22.872 [TX] - AT+SAPBR=2,1<CR>

5/9/2017 16:20:22.892 [RX] - AT+SAPBR=2,1<CR>
<CR><LF>
+SAPBR: 1,1,"10.32.154.195"<CR><LF>
<CR><LF>
OK<CR><LF>

Change www to Airtel APN.
I posted Command alsong with Response.
Try it, Surely it will works for SIM800/900.
All the Best