asterisk users - Nov 2007 - Error: inserting return line in dialing strings

My calls provider has suspended my account, because he says that I am
send bad formating call strings.
According to the email he sent me a line return is beign inserted
after the number.
One string he sent me is the following:
"BADCALL","101339","0115712550727
","reseller","""cesar  reategui""
<101339>","IAX2/101339-496","", ...

Any idea on how to solve the issue?, what can cause it?
I am using Trixbox 2.0 and Zopier softphone for placing the calls ...