I have successfully jailbroken my v2.1 3G iphone. Everything works on the phone, but I am having a problem with the phone function.
When I click on "phone" the green button that should say "call" in it, no longer does, and when I click on any of the shortcuts at the bottom of the screen for fav numbers, address book, recent calls etc, it just boots me out of the phone and onto the main iphone desktop.
To call any of my contacts I have to go into the contacts list from the desktop, but then when I call the number, the screen is blank, so I have no ability to end the call, or go to speaker phone. To end a call I have to wait for the other person to hang up, and if I get through to someone's voicemail, the only way for me to end the call is to turn the phone off.