Overview

The Grandstream Handy Tones HT812 is a 2-port analog telephone adapter (ATA) that allows users to create a high-quality and manageable IP telephony solution for their residence and office. The HT812's ultra-compact size, voice quality, and auto provisioning options allow users to utilize VoIP on analog phones and fax machines. The HT812’s includes an integrated NAT router and dual 10/100/1000Mbps Ethernet WAN and LAN ports to facilitate a shared broadband connection between multiple Ethernet devices while passing VoIP services to analog phones.

Technical Specifications

Features

Some major features of the Grandstream HT812 include:

• Support 2 SIP profiles through 2 FXS ports for HT812 and 4 FXS port for HT814 and dual 10/100/1000Mbps Ethernet port for HT812
• Support 3-way voice conferencing.
• Support wide range of caller ID formats.
• Support advanced telephony features, including call transfer, call forward, call-waiting, do not disturb, message waiting indication, multi-language prompts, flexible dial plan and more.
• Support T.38 Fax for creating Fax-over-IP.
• TLS and SRTP security encryption technology to protect calls and accounts.
• Automated provisioning options include TR-069 and XML config files.
• Failover SIP server automatically switches to secondary server if main server loses connection.
• Use with Grandstream’s UCM series of IP PBXs for Zero Configuration provisioning.
• GR-909 Line Testing Functionalities.

The HT812's Ports

On the back of your HT812 device, there will be ports that facilitate different types of connections to allow the HT812 ATA to function.

Port	Description
Ports 1 and 2	Connect analog phones or fax adapters to the ATA using RJ-11 telephone cables.
WAN	Connects the ATA to your router, switch or modem using an Ethernet RJ45 network cable to provide the ATA with a stable internet connection.
LAN	Connect the ATA to a PC, analog phone, or switch using an RJ45 ethernet cable to have the ATA pass along an internet connection through daisy chaining.
DC Power	Connect the ATA to a power supply unit (12V – 0.5A).
Reset	Press this button for 7 seconds to reset the ATA to factory default settings.

The HT812's LEDs

LED Light	Status
Power LED	ON: Device is powered on. Flashing: Device is booting up. OFF: Device is disconnected to power.
WAN LED	Device is connected to an internet network through the WAN port.
LAN LED	Device is connected to a device through the LAN port.
Phone LED 1&2	The phone LED 1 & 2 indicates the status of a respective FXS port connected to a phone on the back panel. OFF: Unregistered. ON: Registered and available. Blinking every 500 ms: Off-hook or Busy. Slow Blinking: Indicates that a connected FXS phone has a mail. This function may not be available for certain devices.

Connect Your HT812

The components of your Grandstream HT812 include:

• The HT812 ATA device.
• A 12V power supply unit.
• An RJ45 ethernet cable.

Connect an HT812 Using the WAN Port

1. Insert a standard RJ11 telephone cable into the HT812's Port 1 .
2. Connect the other end of the telephone cable to a standard touch-tone analog telephone or fax machine.
3. Connect the WAN port of the HT812 to a router, switch or modem using an RJ45 Ethernet cable.
4. Insert the 12V power adapter into the HT812's DC power port.
5. Plug the other end into a wall outlet.
   

   ✔ The Power, WAN and Phone LEDs will be solidly lit when the HT812 is ready for use.

    
6. Once the HT812 is powered on and the LEDs are solidly lit, contact our technical support team to have the HT812 provisioned and registered.
   

Connect a Device to an HT812 Using the LAN Port

A Grandstream HT812 can be daisy chained to another IP device so that it can pass its internet connection along. This can be handy if you have a limited number of ports available for devices to be connected to your internet equipment.

To connect another IP device to your HT812 ATA…

1. Insert a standard RJ11 telephone cable into the HT812's Port 1 . 
2. Connect the other end of the telephone cable to a standard touch-tone analog telephone or fax machine.
3. Connect a computer or switch to the LAN port of the HT812 using an RJ45 Ethernet cable.
4. Insert the 12V power adapter into the HT812's DC power port.
5. Plug the other end into a wall outlet.
   

   ✔ The Power, WAN and Phone LEDs will be solidly lit when the HT812 is ready for use.

    

Use the Interactive Voice Prompt Response Menu

To effectively use the menu, keep these tips in mind:

• * = Shift down to the next menu option.
• # = Return to the main menu.
• 9 = Functions as the ENTER key in many cases to confirm or toggle an option.
• All entered digit sequences have known lengths – 2 digits for menu options and 12 digits for IP addresses. For IP addresses, add a 0 before the digits if the digits are less than 3 (i.e. – 192.168.0.26 should be key in like 192168000026. No decimal is needed).
• Key entries cannot be deleted but the phone may prompt an error once it detects one.
• Dial *98 to announce the extension number of the port.

Use an Analog Phone Connected to a HT812

When you have an analog phone connected to the HT812 to use VoIP services, you will find that there are new features you use through the HT812 ATA.

Call Feature Codes

When there is an analog phone connected to one of the Phone ports, your Grandstream HT812 will allow certain dialable codes to be used to do certain things. 

Here is a list of the codes that can be used, and the features supported by each code:

Place a Phone Call

With your analog phone connected to the Grandstream HT812 device, your analog phone can place outbound calls using VoIP. 

To place a call to someone…

1. Pick up the handset of a connected phone.
2. Do one of the following to dial a call:
   • Dial the number and wait 4 seconds.
   • Dial the number and press #.

Check Your Voicemail

The HT812 indicates that there are new voice mail messages waiting by using its Phone LEDs and a Stutter Tone.

• The Phone LEDs on the HT812 will start blinking slowly when a new voice mail message is available on corresponding account.
• When you pick up the handset of a phone connected to the HT812, a stutter tone will be played the first few seconds followed by dial tone.

Access Your Voicemail

If your HT812 is signaling that there is a voicemail to be checked, you can access your voicemail by…

1. Pick up the handset of a connected phone. 
2. Press *** to access the IVR menu.
3. Wait until you hear “Enter the menu option.”
4. Press 86 and enter your configured password to access the voicemail menu.

Reset the HT812 to Factory Default Settings

In some situations, it may be necessary to factory reset your Grandstream HT812. This may need to be done to troubleshoot issues with the device or clear out an incorrect configuration.

Use the Reset Button

One way you can reset your HT812 device is by pressing and holding the reset button that lies behind the reset hole located on the back panel of the HT812. 

To reset your Grandstream HT812 using this method…

1. Unplug the ethernet cable.
2. Locate the reset hole on the back panel of your HT812.
   
3. Insert a pin in this hole and press it for about 7 seconds.
4. Take out the pin.
   

   ✔ Your HT812 ATA should now be reset back to its factory default settings.

   From here, it can be reconfigured with the help of one of our technical support team members.

    

Use the IVR Menu

If you have an analog phone connected to your HT812, you can dial and use the IVR menu to command the HT812 to restore itself to its factory default settings.

To reset your Grandstream HT812 using this method…

1. On a phone connected to the HT812, dial *** to access the IVR.
2. Enter 99 and wait for the reset voice prompt.
3. Enter the encoded MAC address of the HT812.
   

   Encode a HT812's MAC Address

   Anytime you need to enter the MAC address of your HT812 in the IVR menu, the MAC address will need to be encoded to be typed in. This is due to letters not easily being able to be typed in using a dial pad on a phone.

   1. Locate the MAC address of the HT812.

   Quick Tip: The MAC address will appear as the 12-digit HEX number on the bottom of the device.

    

   2. Use the following table to see how the MAC address should be encoded to be typed in:

   Key	Mapping
   0 - 9	0 - 9
   A	22 (Pressing the "2" key twice should show “A” on the LCD)
   B	222
   C	2222
   D	33 (Pressing the "3" key twice should show “D" on the LCD)
   E	333
   F	3333

   For example… If the MAC address is 000b8200e395, it would be keyed in as “0002228200333395”

    

    

    
4. Wait 15 seconds for the device to automatically reboot.
   

   ✔ Your HT812 ATA should now be reset back to its factory default settings.

   From here, it can be reconfigured with the help of one of our technical support team members.