1 Introduction

The Offline Address Book (OAB) File Format and Schema describes the offline address book (OAB) version 2, OAB version 3, and OAB version 4 file formats. OABs are files that store address list information on the client, so that the client can access the information when it does not have a network connection with the server or is working offline.

Sections 1.7 and 2 of this specification are normative. All other sections and examples in this specification are informative.