MMS | Tethering on iPhone 3.0

There are some great instructions over at TekNation for getting MMS and tethering to work on your iPhone.  The gist of it is:

1. If you’re not interested in MMS, skip to step 3.
2. If you’re interested in MMS you’re going to have to give AT&T a call to enable WAP Push on your device.  This typically isn’t enabled on an iPhone plan, and I’ve had trouble in the past getting them to enable it, but that was quite a while back.  Maybe things have changed now.
3. Install an IPCC file on your phone.  This is an iPhone carrier settings file that updates your phone with the correct instructions for connecting to AT&T’s network.  You probably don’t want to use this file if you’re using a jailbroken phone and you’re on T-Mobile. (NOTE:  You install an IPCC file the same way you install an IPSW file manually: by option-clicking the restore button in iTunes.  However, in order to enable iTunes to read IPCC files you’ll have to do the following: On the Mac: open Terminal and type in defaults write com.apple.iTunes carrier-testing -bool TRUE. On the PC: open cmd and type in C:\Program Files\iTunes\iTunes.exe" /setPrefInt carrier-testing.) You can get the IPCC file here.
4. Enable MMS and Tethering on your iPhone by going into the settings menu on your phone.  When you plug your phone into your computer your computer will recognize it as a USB Network Device.  You’ll have to look at your network connections settings page to see the device.

Voila!  MMS and Tethering.

Go check out the full set of instructions.