Method and apparatus for defeating predictive telemarketing...
Method and apparatus for monitoring communication...
Method and apparatus for prioritizing telephone calls
Method and apparatus for restricting dialing authorization in co
Method and system for determining independent authorization...
Method of arbitrating type II/type III CPE's during SCWID
Organization chart based call information routing
Party selecting circuit arrangement
Personal communicator telephone system
Personalized telephone for automatic access to operator services
Phone screen security system
Preemptive telecommunication interface for computer systems
Remote access telephone control system
Restricted access telephones for logical telephone networks
Secure programmable telecommunication timer
System and method for telephone operation in quiet mode
System and method for telephone operation in quiet mode
System and process for automatic storage, enforcement and overri
System and process for automatic storage, enforcement and...
System and process for automatic storage, enforcement and...