Send Sms message from code behind on windows phone

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Mobile

SMS

Windows-Phone-7

I'm writting an app to communicate with the tracking device of my motorbike. The communication goes by sms messages in which you need to write the command with a password and a parameter.
I've Created some buttons that automaticaly write the exact message just by pushing the button. Now I want the message to be sent after it is composed. The searches on the internet all go back to the smscomposetask on which the user gets the message to be sent on his screen and then need to push the send button again. I want to skip this last step in the procedure so that the sms is send after pressing the first button.

From the research I've done it seems to be impossible due to permission restrictions.

Is their any workaround to do this?