Facility modem-to-modem application
Facsimile apparatus with device to determine line changes, and h
Fee collection system and method for call completion
Flexible billing support in a service selection gateway (SSG)
Flexible call detail recording system
Flexible customer billing solution for telephone systems utilizi
Flexible recharge system for prepaid telecommunications service
Flexible system for real-time rating of telecommunications trans
Fraud control system for processing calls with an automatic numb
Fraud detection based on call attempt velocity on...
Fraud detection in a distributed telecommunications networks
Fraud library
Fraud monitoring system
Frequency-based discount system for host-system within a...