A mobile station communication network includes a high penetration network which schedules high transmission power level paging to reach a mobile station for which an acknowledgment signal is not received. A home location register stores mobile station high penetration network (HPN) subscriber feature...http://www.google.es/patents/US5884170?utm_source=gb-gplus-sharePatente US5884170 - Subscriber feature controlled high penetration messaging
Subscriber feature controlled high penetration messaging