Telephone time recording system
Telephone travel card system under the control of its customers
Telephone usage monitoring arrangement
Telephony system and method with improved fraud control
Time balance based prepaid subscriber database and reporting
Time-of-day clock synchronization in commincations networks
Timer for controlling telephone usage
Toll call rate provider
Toll fraud detection system
Toll ticketing record generation for billing of intersystem hand
Toll-free telephonic communication method and device
Tracking and notification of telephone plan minute status
Tracking and notification of telephone plan minute status
Traffic and capacity modeling process
Traffic control in a telecommunications system
Traffic data collecting arrangement comprising a template data m
Traffic data collection technique
Traffic distribution generator
Traffic evaluation system
Traffic measuring apparatus and method