Rating: 
Summary: Great performer with one minor quirk!
Review: I got a great deal on this phone and two extra handsets and have been enormously pleased with with its performance and versatility. I don't believe there is a more rounded phone package available at a better price, and believe me, I've looked.Since it's a 5.8GHz DSS system, I have had absolutely no interference with anything else in my home. And because each handset can be programmed independently of the others, my entire call list is installed on my handset, while my kids have their friends programmed into each of their phones. None of us has to look through long lists of people we don't know to find the people we want to call. When looking for a new phone system, I wanted to get one that had both a built-in speaker phone and an answering machine with separate mail boxes. This not only delivered, but I got a very useful bonus as well: each handset can be used as a speaker phone. Now I'm not tied to the base unit when I need to use the speaker phone. The only gripe I have is with the answering machine. It works fine and has three mailboxes, which I wanted. However, it records a "message" every time it answers, even on hang-ups or when the caller does not actually leave a message. It's a pain to have to wade through six or seven blank messages on mail box 1 just to hear the two or three real ones. That's the reason I am giving this four stars instead of five. Other than that one quirk, it is a great phone system, and I highly recommend it for its versatility and performance.
Rating: 
Summary: Do not like this system after one year.
Review: After spending considerable time investigating phones with answering machines, I chose the 5840 since it was one of the highest rated phones. I found everything to be as reviewed in the few days I used it, but I had to return it because the charger only charged the handset the first time. Since I purchased it via mail, I will have to wait for the replacement to continue my review.
Rating: 
Summary: Works poorly in my house.
Review: Bought the base and 3 handsets. Set it up in every conceivable combination of locations in the house. Could not find a set-up that worked without my voice breaking up at the other end. Called the AT&T hotline and they discussed microwaves etc. I'm packing up the phones & sending them back as we speak. Oh well, in some houses they work; in some houses they don't.
Rating: 
Summary: Best Portable phone for the Money
Review: This phone is feature rich and it may be the best phone that I have ever owned. The handset speaker-phone works as good as the speaker-phone in my office. The audible caller ID is awesome the way that it tells me who is calling... do I really want to talk with him? Great phone. Buy it.
Rating:
Summary: Not as impressed as I'd hoped
Review: I purchased this phone for the long range use and multiple mailbox feature. The phone would be perfect for all my needs but occasionally it emits a tone (similar to a fax machine sound) on an incoming call. I contacted customer support and they said it is not the phone it is my phone line. I contacted my phone company and they say it's the phone. I tend to think it's the phone because I never experienced this with any other phones and I also have a GE cordless in my basement that has never experienced this problem.
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