#777 will be found in your log without an IP address sometimes **IF** you connected WITHOUT the VZAccess Manager.
with my modem, the UM175, when the software was setup, there was automaticaly a "dial-up connection" established
in your networking section.
If you clicked on that, it would bring up the "dial-up" dialogue box, and you would see #777 as the dial-up number, If you
tried to connect, it would indeed, connect you to the internet.
The VZAccess manager is just a more simplified way, as it shows your signal strength as well...
HOWEVER, if you are using the "LOG" in the VZAM to track your usage, it will be WRONG! it is NOT ACCURATE.
Click on "USAGE" on the main screen to get an 'ESTIMATE" of your usage (though sometimes not accurate, and never up to date)