# Ping gprs Example

**URL:** <https://forum.sierrawireless.com/t/ping-gprs-example/4036>\
**Category:** Legacy AirPrime modules\
**Created:** [December 29, 2009, 6:30am UTC](https://forum.sierrawireless.com/t/ping-gprs-example/4036 "2009-12-29T06:30:45Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![chandrababu](https://avatars.discourse-cdn.com/v4/letter/c/57b2e6/32.png) [@chandrababu](https://forum.sierrawireless.com/u/chandrababu)\
**Post date:** [December 29, 2009, 6:30am UTC](https://forum.sierrawireless.com/t/ping-gprs-example/4036/1 "2009-12-29T06:30:45Z")

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Hai all,  
I downloaded the .dwl file of “ping gprs” example given by wavecom. using this example how can i send data  
packet to server. i run this program with two user defined At comnads ie AT+GSET,AT+WDATA,  
for this commands i got this response. Pls tell me how to run this program .  
After run the proram this is the output in the hyperterminal. I am getting “Context activation error”

+WIND: 13  
Transfer Application started  
at+wopen=1  
OK  
+WIND: 1  
+WIND: 16  
+WIND: 7  
at+gset?  
+GSET: 1,“122.50.150.23”,"","",“122.50.150.23”,0,0  
+GSET: 2,"","","","",0,0  
+GSET: 3,"","","","",0,0  
+GSET: 4,"","","","",0,0  
OK  
+WIND: 4  
+WIND: 10,“SM”,1,“FD”,0,“ON”,0,“SN”,0,“EN”,0  
+WIND: 11,“636FF611D999BB08B72155A96C001D22”,“18C40FACFE235F2532DF4F2CD8255CCC”,“B6D11D86E54354DEE92DDAF119266001”  
at+wdata?  
+WDATA: 0,“122.50.150.23”,1,350,145,10  
OK  
at+wdata=1,“122.50.150.23”,1,400,145,10  
Context activation error  
ERROR  
+WIND: 15,1,“Airtel”,2,“Airtel”,3,"+22",4,“09/12/29,06:07:05+22”,6,“0”  
adsfasjfkshdgjlsa;  
at  
OK  
at+wdata?  
+WDATA: 0,“122.50.159.252”,1,400,145,10  
OK

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**Author:** ![davidc](https://avatars.discourse-cdn.com/v4/letter/d/a183cd/32.png) [@davidc](https://forum.sierrawireless.com/u/davidc)\
**Post date:** [December 31, 2009, 11:18pm UTC](https://forum.sierrawireless.com/t/ping-gprs-example/4036/2 "2009-12-31T23:18:09Z")

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Hiya,

Where did you get the .dwl application from? Have you read the app notes or documentation that came with the application?

Have you set the right APN for your service provider?

ciao, Dave