---
title: "About This Manual"
slug: "about-this-manual-43"
status: "update"
updated: 2026-08-07T01:43:24Z
published: 2026-08-07T01:43:24Z
canonical: "knowledge.akuvox.com/about-this-manual-43"
---

> ## Documentation Index
> Fetch the complete documentation index at: https://knowledge.akuvox.com/llms.txt
> Use this file to discover all available pages before exploring further.

# About This Manual

![](https://cdn.document360.io/f09a6106-e976-455e-b2d0-3d88b5385960/Images/Documentation/S535-Admin-Guide用户指南-EN(1).jpg)

Thank you for choosing the Akuvox S535 series door phone. This manual is intended for administrators who need to properly configure the door phone. This manual applies to version 535.30.11.27, and it provides all the configurations for the functions and features of the S535 series door phone. Please visit the Akuvox forum or consult technical support for any new information or the latest firmware.