DOCUMENT PURPOSE
This document describes the basic concept and tasks necessary to use and configure your HT81X. And it
covers the topic of connecting and configuring the HT81X, making basic operations and the call features.
Please visit http://www.grandstream.com/support to download the latest “HT81X Administration Guide” to
have more visibility about the configurable settings of your Handy Tones.
This guide covers following topics:
• Product overview.
• Getting started.
• Configuration guide.
• Call features.
• Call operations.
• Upgrading and provisioning.
• Restore factory default settings.