IntroductionAbout this Feature ManualThis Feature Manual is designed to serve as an overall feature reference for the Panasonic Video IntercomSystem Control Box.This manual explains what the Control Box can do, and how to obtain the most out of its many features andfacilities.The Structure of this ManualThis manual contains the following sections:Section 1, For Your SafetyProvides details about safety precautions for preventing personal injury and/or damage to property.Section 2, Call Handling FeaturesProvides details about the call handling features.Section 3, Unified Messaging SystemProvides details about the features of the Unified Messaging system.Section 4, System Configuration and Administration FeaturesProvides details about the system configuration and administration features.Section 5, AppendixProvides tables listing capacity of system resources.Functional LimitationDepending on the Control Box's software version, some features may not function. For details about whichversions support these features, consult your dealer.References Found in the Feature ManualInstallation Manual ReferencesThe required installation instruction titles described in the Installation Manual are noted for yourreference.PC Programming Manual ReferencesThe PC Programming titles and parameters described in the PC Programming Manual are noted foryour reference.Feature Manual ReferencesThe related feature titles described in this Feature Manual are noted for your reference.Operating Manual ReferencesThe operation required to implement the feature described in the Operating Manual is noted for yourreference.AbbreviationsThere are many abbreviations used in this manual (e.g., "SIP", for Session Initiation Protocol). Pleaserefer to the list in the next section for the meaning of each abbreviation.About the other manualsAlong with this Feature Manual, the following manuals are available to help you install, and use the ControlBox:Installation ManualProvides instructions for installing the hardware and maintenance of the Control Box.PC Programming ManualProvides step-by-step instructions for performing system programming using a PC.Introduction2 Feature Manual