There are a lot of ATA’s out there, and believe it or not, they are not all a good fit. It is important to know what you are getting into when purchasing your new Analog Telephone Adaptor. How many ports does it have? What is the interface like? All of these things can play a factor when choosing what is right for you.

One of the more popular ATA’s that’s available is the Grandstream HT802. This compact VoIP adapter is packed with features and can deliver exceptional functionality to your VoIP setup.

But don’t take my word for it! Check out the full review from Marc Spehalski in the video above, and let him shed some light on the VoIP adapter that should be on the top of your list.

Are you currently using an ATA? If so, what are you using? If you’re familiar with the HT802, then let us know your experience in the comments below.

You have a limited budget and you love your old phones. Does that mean you can’t ever enjoy the benefits of VoIP that everyone is talking about? No, not at all. A VoIP adapter is your answer.

A VoIP adapter, also known as an Analog Telephone Adapter (ATA) converts a VoIP signal to an analog tone so that you can use existing analog devices such as your old phone or fax machines with VoIP service. In other words, you will be benefiting from VoIP just like other VoIP users without having to replace your existing analog equipment! Better yet, you can get a new ATA for just under 60 dollars! Here are 5 popular ATA choices to get your foot in the door:


Obihai OBi302 ($57)

The OBi302 by Obihai is a 2-port ATA that allows you to use your analog devices with any SIP trunking provider. Simply plug the ATA into your router and then plug your analog devices into the ATA, you are ready to go!

The OBi302 features 2 FXS connections. You can connect 2 analog phones, an analog phone, and a fax machine, or 2 fax machines to the Internet for VoIP calling. It also has 2 RJ45 ports for you to connect to your router and to another IP device such as a computer.

  • 2 Port FXS for one analog device
  • Support for 4 SIP accounts
  • Will support faxing using T.38
  • Includes 2 RJ45 ports with integrated QoS for connecting to a broadband router
  • USB port for use with USB devices or OBiWiFi or OBiBT
  • Provisioning via HTTPS, HTTP, or TFTP

See the OBi302 Datasheet


Obihai OBi300 ($45)

The OBi300 is a 1 port ATA that supports up to 4 SIP accounts and T.38 fax. This ATA will work with most SIP-based Internet Service Providers (SIP) and it is one of the world’s best ATA choices for Voice Service Providers because it is completely zero-touch customizable and very easy to work with.

If you love a wire-free solution, the OBi300 is also equipped with a USB port for you to use with USB devices or OBiWiFi or OBiBT to work wirelessly! A truly convenient and user-friendly device.

  • 1 Port FXS for one analog device
  • Support for 4 SIP accounts
  • Support Fax T.38
  • USB port for use with USB devices or OBiWiFi or OBiBT
  • Provisioning via HTTPS, HTTP, or TFTP

See the OBi300 Datasheet


Cisco SPA112 ($59.99)

The SPA 112 is an ATA with 2 FXS and 1 10/100 WAN ports. It is an intelligent low-density Voice over IP gateway that enables both residential and business telephony services. This solution comes with LED lights to indicate the state of each call and on/off hook and hook flash.

  • High-quality, clear-sounding voice, using advanced QoS capabilities
  • Support reliable faxing
  • Include two standard telephone ports
  • Simple-to-use web-based configuration utility

See the SPA112 Datasheet


Grandstream HT802 ($49)

Grandstream HT802 ATAGrandstream’s HT802 is a dual FXS Analog Telephone Adapter (ATA) with a sleek design that is suitable for any residential or business setting that wants to turn their analog phone into a VoIP system easily and quickly.

The HT802 is a compact-sized device that can fit in almost anywhere from individual VoIP deployments to commercial deployments. The high and security protection and redundant SIP server failover give you peace of mind knowing you can communicate without worries. It also supports T.38 fax-over-IP.

  • Auto-provisioning options
  • Two SIP profiles
  • Three-way conferencing
  • Unique security certificate per device

See the HT802 Datasheet


Grandstream HT801 ($39)

Similar to the HT802 ATA, the HT801 is also a compact-sized, high-quality manageable ATA designed for both residential users and any office environments. The HT801 is a single-port ATA that’s also good for road warriors who can easily tap into the IP system using existing analog line in their hotel rooms and get connected to work within seconds!

Our customers love the advanced telephony features, the security protection, and auto provisioning that just makes your life easier!

  • 1 FXS port for analog devices
  • 1 10/100 Ethernet Port
  • Do not disturb
  • Message Waiting Indication
  • Multi-language voice prompt
  • T.38 fax
  • Flexible Dial Plan

There you have it! Now compare these 5 ATAs in one chart below to find the best fit for your company. Not sure what suits your business situation best? Give one of our VoIP experts a call at 1-800-398-8647, we will help you locate your ideal solution in no time!

See more ATAs!

Note: This is a guest post from Mark Dacanay.

Now that more and more businesses are moving towards the cloud, it would really be helpful to learn about all the equipment you can use to maximize its potential. One of the Cloud’s practical applications for business is communications. Businesses can use the Internet as a communication medium for voice and video calling, text messaging, and online faxing. Voice over IP or VoIP is the Internet protocol that makes voice and video calling possible via the web, using connected devices like computers and mobile devices.

Aside from PCs and smartphones, there is still other hardware that you need to know, in order to make the most out of VoIP for your business. Here are a few of them to get you started:


VoIP Routers

A router is a network hardware that allows your local network, including your computers and other devices, to communicate with the Internet. This is an important VoIP hardware because it is your network’s first line of defense. This keeps your local network safe, including your communications system, which is vital to the success of your business.

VoIP routers are really useful for companies with multiple office spaces sharing the same network. Aside from the added security from hacking and information leak, having multiple VoIP routers distribute the user load, especially when your business revolves around calling and contacting clients, or getting calls from customers throughout the day.


Telephone Handsets

Perhaps the VoIP hardware that we’re most familiar with is the telephone handset. These are the ones that we are likely to end up using, as it likely retains the same features as that of the common telephone. VoIP-enabled telephones allow us to make and receive calls, only this time, through the Internet. Currently, you can opt between using IP phones (intended for VoIP use) or your traditional PSTN (Public Switched Telephone Network) handsets. The advantage of using IP phones is their plug-and-play compatibility, wherein right off the bat, you can use it to make and receive calls. There’s no need for conversions or other long-winded processes to be able to use your regular home phones as an IP phone.

Aside from your typical wired handset, you can also use a wireless IP phone for added mobility and flexibility while you use it on your network. By integrating a Wi-Fi adapter on a cordless, battery-powered handset, you will be able to connect to your network and take calls as you would in a regular phone. Only this time, you can move around and go from room to room because you’re not tethered to your desk by a wire.

While there may be other ways to use VoIP (like PC-to-PC VoIP, mobile device calling, etc.,) nothing beats the experience of lifting a phone to your ear to make and receive a call, even if it uses an Internet connection. This is why having telephone handsets as part of a modern network is a practice that will never get old.


Analog Telephone Adapters or ATA

Grandstream HT802 ATASpeaking of using your old PSTN handsets for VoIP, there’s one important device that you can get in order to do so. Analog Telephone Adapters or ATAs acts as a hardware interface between your regular, wired PSTN phones and your digital VoIP line. This is particularly helpful if you have a lot of PSTN phones, maybe from your old, onsite telephone system. This will save you a lot of money from buying new VoIP handsets, which are fairly more expensive because of all the new tech that goes with them. If you are using PC to PC VoIP, you don’t need an ATA. However, if you plan on using your home or office with existing analog phones, such an adapter is a must.


Computers and Mobile Devices

Nowadays, VoIP is mainly done through computers and mobile devices. The ease of use, plus the proximity to these devices have replaced the need for a wired handset on your desk. Using your mobile devices and computers to make and receive VoIP calls gives your employees more flexibility. They’re not tied down to a desk, meaning, they could be doing something else (more work!) while taking a call. Computers usually have a software installed so that you can have the full functionality of a handset, all in your computer. All you need is to connect another piece of hardware, a headset, on your computer and you’re good to go.

Mobile devices like smartphones and tablets were built with mobility in mind. This is why these devices are fully suited for office use when paired with VoIP. Imagine being able to reach your employees no matter where they are, as long as they’re connected to your network. Other features could be integrated, like having a  business application that not only enables VoIP calling, but also integrates other productivity features like team messaging and collaboration, tasking, and more.

With a bit of a background in VoIP hardware, you will now have an idea what to get for your company’s network and communications system. You don’t have to get everything listed above, just choose the ones that fit your needs and your current communications setup.

Have questions about anything that was covered in this post? Read out to one of our VoIP experts by calling 800-398-8647 or contacting us by email!

Mark Dacanay is a Digital Marketing Professional who has been working with a B2B company offering cloud-based services for more than 5 years. He is obsessed with anything about the cloud – the technology, not the fluffy stuff in the sky. You can reach him through Twitter and LinkedIn.

Acronyms are everywhere these days. Especially on social media with acronyms like BRB (be right back), LOL (laugh out loud), and DM (direct message). Acronyms can even pop up in the business world with clever terms like MTD (month to date), ETA (estimated time of arrival) and OOO (out of office).

When it comes to the VoIP world, you will see acronyms like DID (direct inward dialing), FXO (foreign exchange office), FXS (foreign exchange station) and more telecommunications terms.

But, knowing what VoIP terms stand for and knowing how they can help businesses and residential customers can be two different things! Luckily, we speak VoIP! In our new series, VoIPisms we are going to be demystifying common VoIP acronyms and terms from A to Z! First up we explore what an ATA is.


ATA – Analog Telephone Adapter

It sounds pretty simple, right? But what does it do? An ATA, or analog telephone adapter, is a device that’s used to connect your old analog telephones or fax machines to a VoIP network. If you are looking to start using VoIP but you’re not comfortable getting rid of your old analog phones yet, this is the device that you’re going to want to start looking into. These devices are pretty small and compact. Small enough to fit in your pocket!

A good example of how small ATA’s can get would be the Grandstream HT802. The Grandstream HT802 is an advanced 2-port ATA that is packed into an award winning stylish compact design. Grandstream’s HT802 has market leading VoIP features and functionalities that are suitable for residential and business deployment.  You can watch VoIP Supply unbox the new Grandstream HT802 here.

Grandstream HT802 ATA

If you’re looking for more information on how ATA’s actually work, you can download our free Buyer’s Guide! You can purchase Grandstream’s HT802 ATA here. If you have more questions about ATA’s, VoIP products or services feel free to give the VoIP Supply experts a call at (800) 398-8647, or visit