Identification of calling devices dialing a universal number...
Idle detection for answer supervision
Implementation of charging in a telecommunications system
IMS gateway systems and methods for online charging in IMS...
Inbound telecommunications services resources management system
Incoming call tracking with interactive data collection
Incomplete call notification
Information input/output controller for telephone lines
Inhibiting completion of defrauding calls
Instant calling card provisioning system
Integrated revenue domain for telecommunication networks
Intelligent call connection service
Intelligent configuration server
Intelligent configuration server
Intelligent configuration server for PBX
Intelligent network having service control node and service swit
Intelligent network system
Intelligent networked, automated telephone calling card...
Intelligent queuing of transaction records
Intelligent routing of special service telephone traffic