AT&T EL51203 Review – Truly it’s a perfect cordless phones?

AT&T EL51203On the weekends, we were looking for a phone system that would fit perfectly in a home or small office. After a lot of research, we decided to test and write the AT&T EL51203 review.

After much testing, we were satisfied with its overall performance and features. But one thing we were not sure about was its durability.

This kind of test requires a year or two, which we didn’t have. So, we turned to some real buyers, and they told us that we don’t need to worry about its durability of it.

Now, we are confident about recommending this phone system to you. However, let’s start the review and get to know everything necessary about it.

Noticeable Features

  • The display is large and has high contrast for clear viewing, even under sunlight.
  • The buttons are large and have a backlit for operating in dark or low light conditions.
  • The base station has a dedicated handset locator button so that you don’t lose the handset ever.
  • The directory can store up to 50 caller IDs, and you can set 10 numbers for speed dialing.
  • It supports up to 5 handsets with DECT 6.0 and consumes less power with its ECO mode.

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Compare AT&T EL51203 and AT&T EL52213

AT&T EL51203 DECT 6.0 phone and AT&T EL52213 are identical if you only see the handsets. But you will notice the difference in their features and base station functions. One has fewer features than the other.

AT&T EL52213

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Both have a feature called handset locator, which is very helpful for misplaced handsets. If you press the button, it will enable a loud sound on the handset. So, you will be able to locate it following the loud noise.

Moreover, the AT&T EL52213 cordless telephone is one step ahead with some extra features on the central console. You can check the saved voice messages, control volume, and a number display for the records. As the prices are the same after the discount, you can choose this one over the other that we are reviewing here.

Key Features of the AT&T EL51203 Cordless Phone

Key Features of the AT&T EL51203 Cordless Phone

Audio Quality

The AT&T EL51203 DECT 6.0 phone has HD audio call quality along with a full-duplex speakerphone. So, you will be able to listen to the caller clearly and loudly, avoiding any misunderstanding. Also, the full-duplex feature will allow you to speak and be heard at the same time.

As a result, you will feel like you are talking with the caller in person. With all those features, it becomes compatible with hearing aids, which is essential for seniors and people with hearing problems.


Because of AT&T EL51203 DECT 6.0 and improved signaling technology, you can use the handsets even on different floors within the area.

So, you will be allowed to move around and do other tasks without hanging up or missing an important message. There are AT&T phones for sale without a contract that you can check out for a better range.


The wireless phone systems are already flexible to work with, but this one comes with some extra features. The base station comes with two wireless handsets in the package, and you can add three more to cover large areas. On the other hand, it has the option of either placing it on a desk or putting it on a wall with an additional mounting bracket.


There are a lot of functionalities on this phone that will make your daily life more comfortable. For example, it has a digital answering system, call-waiting feature, quiet mode on the handsets, ECO mode, and a voicemail-waiting indicator. On the bottom right of the handset, you will find a button for intercom calls.

Moreover, the keypad and the display have backlit so that you can operate in a dark or low light environment. This is a perfect cordless phone for a large apartment or small office. Along with this phone, you can check out and switch to AT&T deals so that you can save some while setting up the phone system.

What are users saying about AT&T EL51203?

With mostly good AT&T EL51203 reviews, we think you can rely on the phone. By buying this phone, you can set the best AT&T phone systems for home without spending much. We heard praise from the seniors who used this wireless handset.

The LCD screen is big enough for those with visual difficulties to see the caller ID. Also, the button placement and overall design with a user-friendly interface make it perfect for home usage.

However, we got some bad reviews too, expressing the users’ disappointment about the features of this phone. But going through those complaints, we saw that those are led by little to no research.

As they didn’t read the detailed features and functionalities of the phone, they mistook it for something else. So, you can’t blame the device for your fault.

Our recommendation is to read the full review of the phone system and check if it meets your requirements, and then you should make a decision.

How worthy AT&T EL51203 is compared to features and performance

As technology advances, we can enjoy the benefits without spending a lot like before. For example, we couldn’t think of buying cordless technology for under 30 bucks.

But now, you get two wireless handsets with the base station, which you can consider a full system for that budget range. Because of some discount offers, you may find some better phone systems within this model’s price. But thinking overall features and regular price, this is totally worth its features and performance.

FAQ About AT&T EL51203 DECT 6.0 Phone

Can I use a corded handset on this phone system?

No, this model only allows cordless handsets. For wired handsets, you will have to go for a basic AT&T phone model.

I have seen that it is an AT&T phone system, so will I be able to use it on other landline phone service providers or only AT&T?

This is only a phone, and it will not restrict you from taking the service of a particular company. You can take the landline service from any company and use this phone without any issues.

For some reason, I need to know the frequency used by this phone’s handsets; can anyone provide me that information?

From the phone system’s manual, we came to know that the DECT 6.0 units operate on the 1.9 GHz frequency for interference-free communication.

I used a phone system before, and the letters became faded after a few months of usage; will it be the case for this one too?

Fortunately, you won’t have to face anything like it because of the brilliant design. The letters and signs are printed on the phone, and there are transparent buttons placed on them.

So, the only contact is made with the switch and not the prints. As a result, you will be able to see the button signs even 20 or 30 years later.

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Final Verdict

That’s all about the AT&T EL51203 review, and we think you can agree with us on its benefits. This is a phone with practical design and features for the professionals or people in households. Now, it is time to decide whether to place an order or keep shouting to call someone in another room.