Parallel computer network and method for telecommunications...
Parallel computer network and method for telecommunications...
Parking management system
Passive information access system
Passive telephone line monitoring system
Path allocation arrangement for multi-terminal groups
Pay as you communicate call center
Pay station telephone call answer supervision apparatus
Pay telephone communication system
Pay-per-use communication node capabilities
Pay-per-use communication node capabilities
Payer-variable exchange system
Payment to charities with prepaid card
PBX data retrieval and reporting system and method
Personal communications service having a calling party pays capa
Personal user network (closed user network) PUN/CUN
Personal-servicing communication system
Platform for prepaid calling card calls
Portability of subscriber features in a telecommunication...
Portable communication device for displaying a calling party to