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By WelshPaul
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The following guide will help configure Grandstream adapter with your account.

IMPORTANT: Before you start configuring the device, make sure it has the latest firmware installed and preform a factory reset. Once you have done that, proceed...

To configure your Grandstream HT812 you'll need your port5060 SIP Proxy, Username, Password and STUN Server information. Don't know them?
Get them here:

For the purpose of this guide I am going to use the following dummy information: SIP Credentials SIP Credentials
port5060-credentials.png (27.53 KiB) Viewed 334 times

Now that you have updated your Grandstream HT812's firmware, factory reset it and have your account information to hand you need to login to the HT812's web GUI. To do this, simply open your browser of choice (e.g. Chrome) and enter the IP address of your Grandstream HT812 in the URL field. You will be prompted to login as shown in the image below.

HT812 Login Page
HT812 Login Page
HT812-login.png (58.91 KiB) Viewed 324 times
*Default login username and password is admin/admin.

Now configure the device as shown below...

  • STUN server is:
  • Keep-alive Interval: 15
HT812 Stun Configuration
HT812 Stun Configuration
HT812-STUN.png (9.29 KiB) Viewed 334 times

Click on the "Update" button on the bottom of the page...

  • Profile Active: Yes
  • Primary SIP Server:
  • Outbound Proxy:
  • NAT Traversal: STUN
  • Register Expiration: 60
HT812 Profile 1 Configuration
HT812 Profile 1 Configuration
HT812 FXS.png (120.63 KiB) Viewed 334 times

Click on the "Update" button on the bottom of the page...

Configure "Port 1" as follows:
  • SIP User ID: p123-p123craig123
  • Authenticate ID: p123-p123craig123
  • Password: 12345678
  • Enable Port: Yes
HT812 FXS Port Configuration
HT812 FXS Port Configuration
HT812 FXS .png (33.66 KiB) Viewed 334 times

Click on the "Update" button on the bottom of the page...

Finally click on the "Apply" button on the bottom of the page. Your device will now reboot and register with your account. Login to your account and confirm that the device status is showing "Online". Extension Status Extension Status
Port5060-status.png (28.39 KiB) Viewed 331 times

That's it! You have successfully configured your Grandstream HT812 with Now go make some calls! 👍
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