Debunking the Multi-NAI Myth

[luv2chill]

Originally Posted by ebmorgan

Go read hunterdg's big post in the first page of this thread. According to him it is used. It's M.IP for PAM. Just because it's blank doesn't mean the phone doesn't use it. Example: even M.IP1 is blank when you first get the phone proir to it being provisioned.

(Emphasis mine)

You can't use a blank MIP connection. The MIP1 is blank when you get the phone because it doesn't have any of your personal data in it yet (how could it? That's how it ships from the factory). When you do an IOTA then that MIP gets filled in with your user name as the NAI. Similarly if the handset were PAM-enabled the IOTA would have populated the MIP 2 field with a NAI of:

username@modem.sprintpcs.com

If the phone has been provisioned and it doesn't have a modem NAI in it then there is no way for Sprint to know you're tethering.

Hope that clears it up for you.