Grandstream GXV3275 XML Phonebook Guide - Manual (Page 4)

GXV3275 XML Based Downloadable Phonebook Guide Page 3 of 21
INTRODUCTION
The Grandstream GXV3275 supports XML based downloadable phone book for users to share and
maintain a phone book remotely with ease. Besides directly importing vcard/csv format contacts, loading
contacts from synced-up accounts and manually editing from LCD, the GXV3275 offers this XML API as a
user-friendly download method via the phone's LCD and web UI.
For the ease of efficient deployment and management, the XML phone book file could be stored on a web
server for the phones to download. There are also applications that require a centralized directory server
and have all phones synchronized with the server periodically.
This document specifies the Grandstream XML based downloadable phone book configuration that will be
applied to GXV3275 firmware version 1.0.1.20 or newer. An example XML phone book file is provided at
the end of this guide. Users could start a phone book by adding contacts to the example file or exporting
the existed phone book file from phone's LCD.
WHAT IS XML
XML (eXtensible Markup Language) is a markup language* for documents and applications containing
structured information. This information contains both content (text, pictures, input box and etc.) and an
indication of what role that content plays (e.g. contents in a section header is different from contents in a
footnote). Almost all documents are structured.*
*A markup language is a mechanism to identify structures in a document. The XML specification defines a
standard way to add markup to documents.
WHY XML
What benefits does XML provide to SIP endpoints? XML enables our SIP phones to serve as output
devices and allows the phones to interact with external applications in a flexible and programmable
manner.
XML API ARCHITECTURE
The XML based phone book downloading for the GXV3275 could use HTTP or TFTP as the transport
protocol. The following figure shows how it works via HTTP as an example. First, the GXV3275 initiates the
HTTP GET Request to the HTTP server and waits for the response. Once the phone receives the