Parallel computer network and method for telecommunications...
Parking management system
Passive telephone line monitoring system
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 user network (closed user network) PUN/CUN
Platform for prepaid calling card calls
Portability of subscriber features in a telecommunication...
Portable telephone
Post-delivery support system for private branch exchanges
Pre-biller capability in enhanced charging collection...
Pre-paid calling and voice messaging services for inmates
Pre-paid card system and method
Pre-paid telephone calling card linked to a stored value...