CAMEL

Customised Applications for Mobile Networks Enhanced Logic. In a very simplified way it can be said that this technology enables direct communication of a roaming partner network and a home network when connecting a specific call from a prepaid card. The roaming partner network can check the home network at the time of the call to find out what the user's remaining credit is, and based on this information it can connect the call. Until now, the USSD technology has been more commonly used for roaming of prepaid services abroad.