A wireless communication system or method capable of providing both a two-way telephone service and a two-way paging service on the same infrastructure. The system or method is capable of distinguishing whether a subscriber is a telephone or paging subscriber. If the subscriber is a two-way paging subscriber,...http://www.google.com/patents/US6522879?utm_source=gb-gplus-sharePatent US6522879 - Two-way telephone and two-way paging service on the same wireless infrastructure
