subject: Take your deal anywhere with SIM Free Phones [print this page] SIM Free Phones are not locked by any networks and hence, can be also called unlocked phones. Switching of networks is not a problem in this deal as no boundaries are drawn for the usage of the phone. You can use the SIM of any network on any SIM free mobile phone. The SIM can be bought separately with the SIM only deals of networks, which can be again used as contract or Pay as you go according to the payment mode you choose.