Paul - do you have an idea why a SFTP session that works with TCP/IP will not work with BIS? I am a typical T-Mobile customer with the unlimited BIS options/plan - are they blocking port 22 on me? Obviously it's not a problem for me since I have both, but for some it might be handy to know (as some don't have TCP/IP and only BIS, and vice versa) why BIS might not work...