18 ABOUT THIS GUIDEConventions Table 2 lists conventions that are used throughout this guide.InternationalTerminologyTable 3 lists the United States and international equivalents of some ofthe specialized terms used in the NBX documentation.Troubleshooting information Chapter 10System and component specifications Appendix AISDN BRI, ISDN PRI, and T1 circuit provisioning information Appendix BGuidelines for connecting remote audio devices Appendix CObtaining Support for Your 3Com Product Appendix DReferences to all topics in this book IndexFCC, Industry Canada, Software License Agreement, andWarranty informationthe last pages inthis bookTable 1 Overview of the Guide (continued)Description ChapterTable 2 Notice IconsIcon Notice Type DescriptionInformation note Information that describes important featuresor instructionsCaution Information that alerts you to potential loss of dataor potential damage to an application, device,system, or networkWarning Information that alerts you to potential personalinjuryTable 3 International TerminologyTerm used in U.S. Term used outside the U.S.Toll restrictions Call barringPound key (#) Hash key (#)CO (central office) Telephone ExchangeToll-free Free-phoneAnalog Line Card Analog Trunk Line Interface Module
