Telephone Manager Summary: The Telephone Manager is a new manager for the Macintosh Communications Toolbox. It provides a programming interface that lets you develop a variety of telephony applications, including screen-based telephony applications and Macintosh-based answering machines. Using the Telephone Manager, applications can offer telephone services to users yet operate independently of the user¹s network type or telephone type. For example, a Macintosh application can serve as a virtual telephone‹whether the telephone network provides Integrated Services Digital Network (ISDN) service or ³plain old telephone service² (POTS), and whether the attached telephone set is a speakerphone or a mobile telephone. Issues: Contact System Software Licensing for licensing details.