Inter standard roaming

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Inter Standard Roaming is a general term in wireless telecommunications that refers to roaming between two standards. This term is now widely used in mobile communnications where especially CDMA customers want to use their phone in areas where there is no CDMA network or there is no roaming agreement in place to support roaming on the used standard. In Europe there is hardly any CDMA network. Most CDMA customers originate from the Americas or the Far East. In order to enable them to roam in Europe Inter Standard Roaming is the solution. The CDMA customers arriving in Europe can register on the available GSM networks.