Why duplicate MessageReceived ?

Dec 7, 2013 at 2:41 AM
Edited Jan 3, 2014 at 1:09 PM
Mar 18, 2015 at 11:46 AM
Please help me in this regard.

i am using jamaa smpp client which sends and receives SMS and i have set thread which executes the code every 10 sec save to the database.
but i am receiving duplicate of single sms untile the sms is expired on the server.
what to do to remove this problem from the system. with following code.

TextMessage msg = e.ShortMessage as TextMessage;

thanks cooperation.