I have an wavecom fastrack supreme gsm modem. I want to know if I can have access to the pdu conversion used by the modem ?

I’m developing an app in C# with the porpuse of sending and receving sms’s, the problem is that i’ve used the following converter for testing the pdu’s: twit88.com/home/utility/sms-pdu-encode-decode.

With the generated pdu from that website everthing goes smooth and I’m able to retrieve message,sender and smsc, so i decied to try and read an sms from the modem.

The same parameters (message,sender and smsc) are used for both, the modem comes with a diferent pdu from the one generated from the website.

Any help in understanding how the conversion is made in the modem ?

Many thanks