Skip tracing system
Smart phone
SMDR translator
SMDR translator
Special call fee charging method
Speech fee display method
Speech fee display method
SS7 gateway
SS7 network planning tool
Subaccount direct billing method and apparatus
Subscriber reward method
Subscriber service management
Subscriber service management
Subscriber-initiated automated third party billing feature
Subscriber-initiated automated third party billing feature
Subscription-based billing methods and systems for shared...
Subscription-based billing methods and systems for shared...
Supporting supplementary services in an intelligent network
Switch interaction subsystems for facilitating network...
Switched virtual circuit controller setup congestion...