Call processing software, methods and equipment providing...

Call processing system, method and computer program product

Call programming apparatus and method

Call programming apparatus and method

Call programming apparatus and method

Call programming apparatus and method

Call programming apparatus and method

Call programming apparatus and method

Call programming apparatus and method

Call redirection system

Call return telephone service

Call routing system and method of using the same

Call screening system

Call transfer arrangement using network services

Call transfer service using service control point and...

Call transfer system and electronic mail transfer system

Call transfer with automatic return

Call treatment in portable number networks

Call-associated data transfer among multiple...

Call-forwarding system using adaptive model of user behavior