Cellular telephone rental system and method wherein a point-of-purchase rental terminal capturing transaction data, obtains validation thereof, and communicates same to a collector which in turn instructs a switching system to enable the cellular phone to make and receive calls. The collector...http://www.google.com/patents/US5673306?utm_source=gb-gplus-sharePatent US5673306 - Cellular rental phone system and method having realtime data collection and billing 
