Method and apparatus for intercepting potentially fraudulent tel

Method and apparatus for limiting call origination...

Method and apparatus for migrating embedded PBX system to...

Method and apparatus for monitoring communication...

Method and apparatus for prioritizing telephone calls

Method and apparatus for protecting call privacy

Method and apparatus for providing an alarm call to a remotely l

Method and apparatus for restricting dialing authorization in co

Method and apparatus for selectively blocking incoming telephone

Method and apparatus for telephone call fraud detection and...

Method and apparatus for telephone routing between PTN and PSTN

Method and apparatus in a communications system for dynamic...

Method and arrangement for connection of a computer to a...

Method and system for call screening

Method and system for connecting subscribers of a...

Method and system for detecting fraudulent collect calls

Method and system for determining independent authorization...

Method and system for providing password protection

Method and system to bypass alternate routing plans applied to d

Method for avoiding call blocking