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AT&T 5840

AT&T 5840
alaScore 72

183 reviews

Jul, 2015

alaTest has collected and analyzed 183 reviews of AT&T 5840. The average rating for this product is 3.4/5, compared to an average rating of 3.9/5 for other Cordless Phones for all reviews.

We analyzed user and expert ratings, product age and more factors. Compared to other Cordless Phones the AT&T 5840 is awarded an overall alaScore™ of 72/100 = Good quality.

Review analysis

(Based on 183 reviews)

User Reviews  

Showing 1 - 156 of 183 Show Reviews: in English

Consumer review by: ( review summary for AT&T 5840


alaTest has collected and analyzed 146 user reviews of AT&T 5840 from The average user rating for this product is 3.4/5, compared to an average user rating of 3.8/5 for other Cordless Phones on

73% of the reviews on give this product a positive rating.

This summary is based on the product: AT&T 5840 5.8 GHz DSS Expandable Cordless Speakerphone with Digital Answering System

Jul, 2015

Consumer review by: (

AT&T 5840


like answering machine but am dissappointed to have to replace batteries @6 months and batteries are hard to find

answering machine worked ok

batteries died during use and had to

Jan, 2009

Consumer review by: (

AT&T 5840


Clearly people have different opinions on the reception. That has to be because we all have different devices and sources of "noise". I would say to buy the phone from a place where they offer no hassle returns so you can test it in your own environment.

Reception, quality feel, ease of use

Can't share phonebook between handsets

Jan, 2007

Consumer review by: (

AT&T 5840


AT-T tried to make something great here

good reception

huge design flaw in handset, too many non-working features

Jan, 2007

Consumer review by: (

AT&T 5840


don't worry about programming second handsets, took about 30 seconds. love the speaker phone on the base in case you can't find a handset when a call is coming in. i've had many, this is the best.

durable, sits upright on bottom, great sound

none that i found

Jan, 2006

Consumer review by: (

AT&T 5840


I've had this phone over two years now. I bought it for its features, like long range, sound quality, and speakerphones on the handsets. The performance on the handhelds has been fine.

great features

terrible design, awful reliability

Jan, 2005

Consumer review by: Chris (

Great toy


The knight with wings was cool and the set was great all together.I like how the rock cave had the golden sword with diamonds on top of it.The toys were very durable and greatly designed, over all i think this is a great product, but one bad thing was...


Jun, 2011

Consumer review by: Tiermann (

Wings Fall Off


The only Playmobil product I've ever seriously disliked. Normally their quality control is great but on this one the plastics of the wings and the joints don't match up well and the wings tend to fall off. The other dragon sets available right now are...


Dec, 2010

Consumer review by: graphics_guy (

Nice phone, but "not all that" (several annoyances)


I bought this phone about a year ago, and this review is based on my using it for approx 1 year... The reason I picked it was that it was the latest-greatest speed transmission (5.8Ghz), and I really liked the look and feel. And also there was a nice ...

Ok look, feel, sound, and range. Good answering machine features.

No base-unit battery & clock gets reset, no central phonebook.

Jul, 2005

Consumer review by: rich1785 (

Great Phone, ready to expand the system


Good Clarity, adequate range, excellent speakerphone, TOP NOTCH PRICE POINT, and multiple mailboxes

Extended initial charging period, no base keypad.

Jan, 2005

Consumer review by: alabedz2 (

Unfortunately the worst phone I've ever purchased


Talking call announcement,Lighted ringer on handsets,Good base speaker phone

No audio quality to speak of,Handsets cannot transfer numbers from other handsets,Price,Quality

Aug, 2004

Product Specifications

Advanced American Telephones designs and produces the telephone products that millions of people enjoy every day. AT&T's voice quality, product selection, and reliability make these telephone products your best choice. They reflect a long and distinguished history of product excellence dating back over 100 years. Today, the company's product line is one of the most extensive in the industry, including corded and cordless phones, answering systems, and phone-related accessories. AT&T cordless telephones are perfect for a person who wants mobility and flexibility while making calls. PRODUCT FEATURES: New 5.8GHz DSS technology; Digital Spread Spectrum Frequency Hopping technology; Sound select; Cordless handset and base speakerphone; Handset vibrating ringer; Analog and digital clock displays; 50 name / number directory; Intercom / conferencing / call transfer; Lighted keypad.

Answering Machine

Answering System Type:Digital
Recording Capacity:15min


Standby Time:Up to 120 h
Talk Time:Up to 480 min


Type:LCD display


Packaged Quantity:1
Product Line:AT&T


Color:Black / Silver

Service & Support

Type:1 year warranty


Conference Call Capability: Yes
Dialer Type:Keypad
Header Features:W/ call waiting caller ID & answering system
Transmission Band:5.8 GHz
Type:Cordless phone

Telephone Features

Caller ID: Yes
Handset Locator: Yes
Intercom: Yes
Multiline Operation Capability:Single-line operation
Speakerphone: Yes