French internet provider Iliad has announced that subscribers to its Free brand using jailbroken iPhones (and iPod touch units with a VoIP microphone attached) can make unlimited calls to French fixed, land-line numbers. Free is offering complete instructions for the calling process, which involves installing Siphon, a SIP-VoIP application developed by Touchmods, on its website. As Free was the first company to donate an iPhone to the Touchmods team,…