All GT faculty and staff members can sponsor guest accounts through https://passport.gatech.edu. Please login there using your GT user name and password. Once logged in, on the left of the web page, under Sponsored Guests, click Manage guests. It will put you on a screen where you can create guest accounts. Feel free to name them whatever you like (if a name already exists, it should warn you).
The services and default limits you can grant for guest accounts are:
|LAWN Wireless Access
There is a link on the page to request a limit increase.