--- title: "About This Manual" slug: "about-this-manual-18" status: "update" updated: 2026-10-09T03:35:13Z published: 2026-10-09T03:35:13Z canonical: "knowledge.akuvox.com/about-this-manual-18" --- > ## 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 ![图片.png](https://cdn.document360.io/f09a6106-e976-455e-b2d0-3d88b5385960/Images/Documentation/%E5%9B%BE%E7%89%87%28482%29.png) Thank you for choosing the Akuvox E18C door phone. This manual is intended for administrators who need to properly configure the door phone. This manual applies to version 18.30.11.205, and it provides all the configurations for the functions and features of E18C door phone. Please visit the Akuvox forum or consult technical support for any new information or the latest firmware.