Yes, that is correct, the files are decrypted once they are received by the mobile server.
NOTE: If the suggested resolution above did not resolve your issue, please contact your Dealer (where you purchased the product from) for support.
If you do not have a dealer, let us be your partner.  We offer affordable, annual support & maintenance packages tailored to ensure you get the help you need. Whether it’s support, training or custom configuration, we’ve got your back. Email me for details.
Verification Source:  Jackie Warren, Speech Processing Solutions Service and Support Rep.
Test Date: 8.13.12