A method and system in which calls made on two or more phone lines of a customer are aggregated for billing and discount billing plans to which the customer subscribes are applied to the aggregated phone usage of the customer. In order to price a call made over a network by a customer of the network,...http://www.google.com/patents/US5915006?utm_source=gb-gplus-sharePatent US5915006 - Telephone line aggregated billing
