Rates of the call shop are usually defined by the administrator, but the rate plans are managed in the main database of the billing system. All the rates are dependent on the charging policy; in case of a destination based billing rates are specified according to the area codes in the supported destinations.
IVON NETWORKS LIMITED is one of the best VoIP (Voice over Internet Protocol) Service Provider focusing in Internet Telephony Solutions for businesses, VoIP reseller programs and VoIP carrier services.