I just tried that and it did not work. Did not prompt me for any settings. I have a valid AT&T account. The iPhone is jailbroken 1.1.2, I can't really remember doing anything recently that would of changed anything. I looked at the ATT_US file (/system/library/frameworks/coretelephony.framework/support/ATT_US):
Everything looks ok there as in username password. AT&T support is closed until monday which I think is stupid.
Thanks,
James
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
<key>BookmarkURLs</key>
<array>
<dict>
<key>BookmarkName</key>
<string>AT&T MyAccount</string>
<key>BookmarkURL</key>
<string>https://www.wireless.att.com/my-account</string>
</dict>
</array>
<key>CarrierName</key>
<string>AT&T</string>
<key>IntlDataRoamingSwitch</key>
<true/>
<key>MyAccountURL</key>
<string>https://www.wireless.att.com/my-account</string>
<key>MyAccountURLTitle</key>
<string>AT&T MyAccount</string>
<key>Services</key>
<array>
<dict>
<key>ServiceCode</key>
<string>*225#</string>
<key>ServiceName</key>
<string>Check Bill Balance</string>
</dict>
<dict>
<key>ServiceCode</key>
<string>411</string>
<key>ServiceName</key>
<string>Directory Assistance</string>
</dict>
<dict>
<key>ServiceCode</key>
<string>*729</string>
<key>ServiceName</key>
<string>Pay My Bill</string>
</dict>
<dict>
<key>ServiceCode</key>
<string>*646#</string>
<key>ServiceName</key>
<string>View My Minutes</string>
</dict>
<dict>
<key>ServiceCode</key>
<string>*08</string>
<key>ServiceName</key>
<string>Voice Connect</string>
</dict>
</array>
<key>ShowCallForwarded</key>
<false/>
<key>ShowCallForwarding</key>
<false/>
<key>ShowDialAssist</key>
<true/>
<key>ShowTTY</key>
<true/>
<key>StockSymboli</key>
<array>
<dict>
<key>name</key>
<string>AT&T</string>
<key>symbol</key>
<string>T</string>
</dict>
</array>
<key>SupportedSIMs</key>
<array>
<string>310150</string>
<string>310170</string>
<string>310180</string>
<string>310380</string>
<string>310410</string>
<string>310980</string>
<string>311180</string>
</array>
<key>SupportsNITZ</key>
<true/>
<key>VVMIgnoresIntlDataRoaming</key>
<true/>
<key>VisualVoicemailServiceName</key>
<string>ACDS</string>
<key>apns</key>
<array>
<dict>
<key>apn</key>
<string>wap.cingular</string>
<key>password</key>
<string>CINGULAR1</string>
<key>username</key>
<string>WAP@CINGULARGPRS.COM</string>
</dict>
<dict>
<key>apn</key>
<string>acds.voicemail</string>
<key>password</key>
<string></string>
<key>username</key>
<string></string>
</dict>
</array>
<key>voicemail_context</key>
<integer>1</integer>
</dict>
</plist>