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Grandstream HT704 Setup Guide

PostPosted: 08/13/2014
by Jake
Credits to Val, thank you for your help.

The attached PDF will help you set up your Grandstream HT704 device from scratch. It is a known working configuration so if you are having troubles with your Grandstream HT704 reset back to defaults and follow this guide.

Re: Grandstream HT704 Setup Guide

PostPosted: 02/03/2015
by Mango
To prevent one-way or no audio with the new FPL switches, the firmware of your device may need to be updated. You should be using at least You may download the latest version from

Once the new firmware is installed, set SIP REGISTER Contact Header Uses to WAN address.