Cringely suggests that AT&T is upset with Apple, which is rumored to be joining Google in bidding for the 700MHz wireless spectrum. A network based on the spectrum could be used to create a pure data service meant for computers, but it is argued that it would also be logical for Apple to encourage VoIP, which could even be installed on the iPhone. This would undercut the need for AT&T, with which Apple has a five-year exclusivity deal. The carrier has been resistant to VoIP on its own networks, since unlimited data plans could effectively allow unlimited calling. AT&T has announced no plans to enter the 700MHz auction, Cringely notes, and if it did it could have to pay $10 billion or more to compete against a juggernaut comprised of Apple, Google and even third or fourth partners.