Method for providing virtual private network services

Method for recording non-communication intervals during a commun

Method for selecting AMA records using directory numbers

Method for server-assisted data processing for a plurality...

Method for the temporary allocation of terminals and users...

Method for tracking connection of service provider customers...

Method for tracking effectiveness of telephone response...

Method for transmitting data signals on analog subscriber lines

Method for transmitting tariff data to a subscriber unit

Method for transmitting voice or data in a wireless network depe

Method for viral distribution of ringback media

Method of accounting prepaid online internet service credit...

Method of and apparatus for recording information on the accumul

Method of announcing information pertaining to a called...

Method of associating multiple prepaid cards with a single...

Method of associating multiple prepaid cards with a single...

Method of billing a communication session conducted over a...

Method of billing a communication session conducted over a...

Method of billing a communication session conducted over a...

Method of billing a multiple service representative conference c