A method for operating a wireless telecommunications system that is capable of providing both public wireless service and virtual private network service on existing IS-95 CDMA facilities without changes to the air interface, the hardware design or the protocols for interacting with home location registers....http://www.google.fr/patents/US5949770?utm_source=gb-gplus-shareBrevet US5949770 - Method for assigning feature sets on virtual private telecommunications networks
Method for assigning feature sets on virtual private telecommunications networks
