Grandstream Powerful 2-Port ATA with Gigabit NAT Router

You are looking at one of the best dedicated sip/voip digital to analog phone adapters. The device has a small, low power consumption and stays cool even while in use. Setting it up is very convenient as you do it via a web browser. It can be customized to an incredible extent. For those who are just learning to use VoIP, all that might seem If the voip provider you choose does not offer a walk-up option, you should look elsewhere You can stream a grandstream here. The box might be difficult, but I think you can do anything you want with it if you know what you're doing. This codec DOES have all the advanced features. There are two sets of opuses 279 and 278. If you do not have a provider who supports those, it won't help you. The quality of my voice is perfect after utilizing this device. You can customize the settings in a wide range of ways to suit your purposes. For more information on IP-based services, click here Transform a phone call into an IP address It has all the features you need to encrypt your voice over the Internet, so there is no way to go wrong. Despite that, I do would like to say a few words about security. The majority of devices nowadays come with hidden codes to call home. My experience is that this is no different. After several moments of watching this, I hooked it up to a lan sniffer to see if it sent any packets to Hanoi! Also, we'll try to do a few things we've not done before For this method to work, you will have to open up port 5060 on your router as well as the standard port 123 (time). As soon as you turn on voip, intruders will bang on your In fact, hackers are searching for 5060 not because of this box, but simply because 5060 is a popular port Therefore, I recommend that you have a good router that can filter the internet traffic by IP address and set the grandstream to a private address assigned to you by your voip provider. Your phone is going to ring between the hours of 10 PM and 6 AM otherwise. And I see no point in letting this box talk to anything but your voip provider's IP address. Put the locks on! You will be putting your home at risk of a security breach if you don't know how to use voip. As far as the built-in router is concerned, it is not useful unless you intend to use this box as an actual router and then attach other equipment to You can set it to "wan only" and forget it just set it to WAN only in the router. It focused on HD Wideband voice only, so I bought this version only to take advantage of that. Not sure if I got much value for my money. You could probably get the HT802 and do the same thing without the router bits if you decided to step down from this. You may be able to get away with a HT801 if all you want is.

Zara Mack

| Dec 23, 2020

In order to replace a Cisco ATA that was having issues with both speed and reliability, I purchased this. As time goes on, we'll see about the reliability of this unit, but the speed issue has been fixed. The Comcast download speed and upload speed I have been promised are in fact true. It is the documentation that is lacking in this case. A box is not provided with any. A simple 8- is all it has It is a 1-page leaflet printed with the GPL. A user is not even provided with default passwords or basic setup instructions. A user guide and admin guide are included on the web site (which can provide little assistance unless you understand the myriad of configuration options) but they are of marginal value. The manuals merely explain the abbreviated labels on the configuration pages in long form. I mean what I say when I say there are myriad configuration options. The Cisco ATA gives me a lot more options than my previous ATA. If you don't have a line of credit, you can use a credit card It's not necessary to have deep knowledge of VoIP to set up this ATA, but it will help, especially when your phone keeps ringing continuously because it's being scanned at all times. As a result of the configuration of this ATA, it allows direct IP dialing, which can cause the phone to ring continuously when port scans are detected. only took me a few minutes to figure that one out using an internet search engine. We managed to fix this problem by finding the direct IP dialing options and disabling them. In other products as well, Grandstream seems to have experienced that problem. In this situation, the fix was the same as it was for other products.
In summary, I am pleased with my experience will caution those who are unfamiliar with VoIP and do not have detailed setup instructions for this ATA that it may prove difficult to set up because the number of options available is very large, and it's not obvious at first which one to change, and which is fine as is.

Chaim Haynes

| Oct 23, 2020

The obi device seemed like a good device but we kept having handshake problems with one local business even after using all the setting our t38 sip provider recommended. The other faxes worked. It took me about 15 minutes to send my first test fax after I went online to find the grandstream manual and updating the firmware. The fax sent to the local business was successful as well. I am happy with the result.

Anaya Macias

| Dec 15, 2020

The product does exactly what it is advertised to do. If certain software that you have is not compatible with your computer, you need to update it immediately. Use the web interface carefully, and set your passwords for both levels of access to make sure you don't lose them. There is only a need to enter the SIP proxy IP address, password, and authentication information, as well as the outbound caller ID information. Integrated with a whole slew of established SIP ITSP services. There are two separate SIP accounts for the two lines, and two different phone numbers for inbound calls. In my humble opinion, I would not put this directly on the Internet, since the firewall is not that strong.

Eloise Sellers

| Sep 21, 2020

Setup was quick and easy, and I was up and running soon after. ATS & ATS There are stores where the same device is sold. Preconfigured APN settings are included with the devices they sell. To enable NXTGENDEVICE as an APN, I simply needed to change my Mobile Network Name.

Nataly Riggs

| Mar 01, 2021

It is a company I would ***AVOID*** at any cost! Amazon has a policy which says you will lose your warranty if you purchase anything through Amazon. You can find that policy on their website.

Nancy Burns

| Apr 23, 2021

Using this is easy with no special programming necessary. I have even used it.

Henley Wu

| Aug 03, 2020

The device was plugged in, accessed from my computer, and all settings were adjusted according to instructions found on the internet and from my SIP provider, and it immediately worked and continues to work without.

Avalynn Baird

| Mar 25, 2021