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Reply To: IN in GSM


IN offers whole range of new features and services and various vendors support different type of services and perpaid being the most used service. Othe then pre-paid there are other services e.g. Virtula private networks (VPN) free phone, one number , premium calling etc, that are not feasible without using Intelligent Networks. You can get hold of the standards that shall provide you all the call flows and other details.