Method and apparatus for reducing inbound traffic congestion...

Method and apparatus for retroactively updating a...

Method and apparatus for screening telephone calls

Method and apparatus for selective post-call audio logo/message

Method and apparatus for storing call feature data

Method and apparatus for telecommunications having automatic...

Method and apparatus for telephone call sub-billing

Method and apparatus for the billing of value-added communicatio

Method and apparatus for the billing of value-added communicatio

Method and apparatus for the billing of value-added communicatio

Method and apparatus for tracing a specific communication

Method and apparatus for universal call identification

Method and apparatus for utilizing a tiered flat rate...

Method and apparatus for validating pre-pay and post-pay...

Method and apparatus for viewing real time telephone charges

Method and apparatus in a communications system for...

Method and apparatus of detection of inter-carrier looping

Method and apparatus of detection of inter-carrier looping

Method and apparatus to provide pay-per-call performance...

Method and apparatus to provide pay-per-call performance...