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Grandstream

Grandstream Powerful 2-Port ATA with Gigabit NAT Router

    • Based on 309 reviews
Condition: New
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$45.16 Why this price?
Save $13.84 was $59.00

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Availability: Only 6 left in stock, order soon!
Fulfilled by Amazon
Arrives Wednesday, May 29
Order within 15 hours and 46 minutes
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Features

  • Supports 2 SIP profiles through 2 FXS ports and dual Gigabit ports
  • Includes a built-in NAT router which can handle routing speeds up to 100MBps
  • TLS and SRTP security encryption technology to protect calls and accounts

Description

GRANDSTREAM HANDYTONE HT812 DUAL PORT ANALOG TELEPHONY ADAPTER 2 FXS


Product Dimensions: 9 x 13 x 2.8 inches


Item Weight: 10.2 ounces


Item model number: HT-812


Is Discontinued By Manufacturer: No


Date First Available: October 27, 2016


Manufacturer: GrandStream


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Wednesday, May 29

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

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Top Amazon Reviews

    • Works Great!!! ....Once it's Configured
This device has pretty darn good hardware at a very reasonable price. Not only that, but it works really great once you get it configured. Another nice thing - this device is completely self contained and you have full control of it's workings by using a web admin on the device. However, it's not plug and play easy to set up. Although, if you have a little bit of IT experience, and have played around with admin screens of routers before, and if you read what I had had to go through to get this working, you'll be able to get it working reasonably quickly. 1) Getting Access to the Web admin interface of the BT812 It's a good thing that this device is completely self contained. If you plug it in to your home network, it will grab a DHCP ip address and boot itself up. The only trick to this process is you'll have to log into your wifi router (or whatever other device that handles your DHCP server) and look up all the DHCP leases. Unfortunately this device does not set the Hostname, so you have to look at the MAC address on the bottom of the device to hunt for which DHCP lease matches your IP address. Once you've found the IP Address you can log into the device using http:// <IP Address> The default login is admin/admin 2) Firmware Update The firmware on the device I got from Amazon is the pretty old version 1.0.31.X I saw the most recent version being 1.0.41.2 so I set out to upgrade firmware before doing anything else. WHAT DOESN'T WORK TO UPGRADE THE FIRMWARE After digging through the what seems like 200 options on the (maybe it's only 120?) on the "Advanced Settings" page, It looked to me like the the device was configured to update the firmware when it's rebooted. So I rebooted. It didn't work. Looking further there was an option to "Upload from local directory". I downloaded the firmware from the grandstream website, unzipped it, and trying to upload it using this button. I tried a few times and it didn't work. Once it spun away for a long time and ultimately nothing happened. Another couple times I tried it and got an error that the file was too big. At this point I tried reading the documentation. (So far about 45 minutes in trying to get this to work) WHAT WORKS TO UPGRADE THE FIRMWARE Turns out all that all that was necessary to get the upgrade to work was to change "Firmware Server Path" to "firmware.grandstream.com" Then "Update" then "Apply" then "Reboot". After it reboots you will see the device start to flash all the lights for a couple minutes and then after it reboots again you will be upgrade to 1.0.41.2. Woo hooooo! Took me about an hour to get this far, but once you know what I just told you, shouldn't take more than 10 minutes or so. CONFIGURING SIP My SIP provider is Flowroute, so I list the details below for Flowroute. However, other SIP providers are probably quite similar, so following something close to the steps I outline below should work for you. This is not difficult once you realize you can ignore the darn near all of the 200-odd settings. Set Under Profile 1, "Primary SIP Server " to the Flowroute server nearest to you, which for me is "us-west-or.sip.flowroute.com " Update and Apply Go to the Flowroute website, log in and go to /Interconnection/Registration to get your SIP credentials: which are the Flowroute Username/Auth Username (an 8 digit number for me). And also copy the the Flowroute Password. On the Grandstream GUI, go to the "FXS Menu" and edit "Port 1": Set both the "SIP User ID" and "Authenticate Id" to your Flowroute UserName/Auth Username. Set the "Password" to your Flowroute Password. Update, Apply, and Reboot At this point it works great!! ... show more
Reviewed in the United States on December 10, 2022 by Joe V
    • Some details from my observations
This is a really good dedicated sip/voip digital to analog phone adapter. It is small, low power, remains cool to the touch. You set it up via a web browser, which I find very convenient. Has an incredible amount of customization you could do. If you are just a first time voiper then you might find all that intimidating. You should make sure your voip provider has a walk-thru for a grandstream. But if you know what your doing, you can do ANYTHING you wish with this box. It DOES have all the advanced codec's g.279 and opus. Again won't do a thing for you unless your provider supports those. I get perfect voice quality from this. and you can fine-tune the settings in all kinds of ways. if you want to go ip-phone to ip-phone across the internet, all the things you need to encrypt your voice. Can't go wrong with this puppy. So I do have a few words about security though. In my experience "ALL" smart devices nowadays have hidden code to phone home and this is no exception. I purposely hooked this box into a lan sniffer and watched it for awhile. Sure enough it tried to send some packets to Hanoi Vietnom!!!! And will attempt to do some things non-standard on port 123 (time) You will also end up opening up ports 5060 to make this work on your router. You WILL have infiltrators banging on your voip ports. not because of this box, but just because 5060 is a popular port for hackers to look for. So I suggest you have a good router with the ability to filter by ip address and lock the grandstream into just "your" voip provider's ip address. Otherwise your going to have your phone ringing at all hours. And I see no reason to let this box talk to anything else other than your voip provider's ip. So lock it down! And if you don't know how, then voip is going to be a security risk in your house. As far as the built-in router on this box, it is useless unless your looking have this box as the actual router and going to tie other devices into it. The router portion of this is very primitive, just set it to "wan only" and forget it. I only got this version of the box because it advertised hd wideband voice. Not sure if I actually got any bang for the buck though. I think you could buy the step down from this and get a HT802 and have the same thing without the router bits. and even a HT801 might be just fine if you just want one incoming line. ... show more
Reviewed in the United States on October 25, 2018 by Inspector Gadget

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