Note: this tutorial is based on Mac OS X, but if you understand it you will be able to apply it to a Windows/Linux computer using your own SCP/SFTP client to access the iPhone's filesystem (or use iphonebrowser as an easier way to transfer the files). Moreover, if you know the EDGE setting and the WAP proxy for a different mobile operator, you might also find it usefull as long as you make the appropriate changes during Step 1 (use the right APN) and Step 2 (edit the proxy.pac file to include the IP addres of your operator's proxy server).This tutorial has been tested with an iPhone version 1.1.4, assumes you have created a folder called "iphone" on your Mac OS desktop and that the IP address of the iPhone is 191.168.1.11. Check the IP address of the iPhone (settings / wifi / arrow going right next to your network name) and replace 192.168.1.11 by that address in the command lines given in the tutorial. The iPhone must also have OpenSSH installed and be connected to the same Wi-Fi network as your computer. Finally, the default root password on firmware 1.1.4 is "alpine". You will be requested to type it every time you are copying files to or from the iPhone.
Step 1: On the iPhone go to settings / general / network / EDGE and set the following parameters
APN: live.vodafone.com
login: dublin
password: dublin
Step 2: download the file proxy.pac into the "iphone" folder on your Desktop
Click here to download proxy.pac
Step 3: upload the file proxy.pac to the iPhone
Open a terminal window and type (one single line - you can copy and paste the whole text in italic):
scp ~/Desktop/iphone/proxy.pac root@192.168.1.11:/private/var/mobile/
Step 4: retrieve the file preferences.plist from the iPhone
In the terminal window, type (one single line - you can copy and paste the whole text in italic):
scp root@192.168.1.11:/var/preferences/SystemConfiguration/preferences.plist ~/Desktop/iphone/
Step 5: edit the preferences.plist file in the iphone folder
Open the file with Text Editor and add the text in red (the text in blue is already present and helps you find where to add the new parameters, moreover the ip1 in bold is the important bit to locate the right location in the original file):
<key>Interface</key> <dict> <key>DeviceName</key> <string>ip1</string> <key>Hardware</key> <string>com.apple.CommCenter</string> <key>Type</key> <string>com.apple.CommCenter</string> </dict>
<key>Proxies</key> <dict> <key>ProxyAutoConfigEnable</key> <integer>1</integer> <key>ProxyAutoConfigURLString</key> <string>file:///var/mobile/proxy.pac</string> </dict>
<key>com.apple.CommCenter</key> <dict> <key>AllowNetworkAccess</key> <integer>1</integer> <key>Available</key> <integer>1</integer> <key>Setup</key> <dict> <key>apn</key> <string>live.vodafone.com</string> <key>password</key> <string>dublin</string> <key>username</key> <string>dublin</string> </dict> <key>Version</key>
Once the changes have been made, save the file.
Step 6: send the modified file back to the iPhone
In the terminal window, type (one single line - you can copy and paste the whole text in italic):
scp ~/Desktop/iphone/preferences.plist root@192.168.1.11:/var/preferences/SystemConfiguration/
Step 7: restart the iPhone
Hold the power button for a few seconds and confirm you want to shut down the phone. Then turn it back on.
Final step: that's it, you can now make sure Safari works even with the Wi-Fi connection disabled
References
http://ww.boards.ie/vbulletin/showthread.php?t=2055239822
http://arashpayan.com/blog/index.php/2008/03/02/t-zones-on-114/
