The PDF file from http://developer.sierrawireless.com/Resources/Resources/AirPrime/Software/AirPrime%20-%20Extended%20AT%20Commands%20Manual.aspx is corrupted.
Marc
Thank you for the heads up!
It will be corrected … 
hi,
there is no such document written for 2.52…
its been removed from the website…
thanks
Moderator