Rating: 
Summary: Terrible, just terrible.
Review: The phone looks decent enough, but performs miserably. I love the base unit (not enough cordless systems have a corded base unit).1. The absolute worst thing about the phone is the sound quality. There is a constant clicking in the earpiece of all of the handsets. It's like you are holding a bowl of Rice Crispies up to your ear while trying to talk on the phone.
2. The range seems at least average. It works fine in the back yard 150-200 feet from the base. (Fine being a relative term, considering you still get the same snap, crackle, and pop).
3. The only redeeming quality is the speakerphone on the handset. You can hear well, and nobody on the other end seems to be able to tell you have them on speaker.
4. One of the most annoying things about the phone is the beep it makes to indicate low battery (or when you put it on the cradle to charge, see below). The beep is one of those sounds that you can't immediately tell where it is coming from, and while not very loud, seems to permiate walls better than most sound. This would not be too much of a problem, if the phone beeped once or twice to indicate low battery, but no, it beeps every 10 seconds or so until you put on the charger or until it dies. I can't even estimate how many nights I've had to get up out of bed and find the phone that was low on battery.
5. This may be unique to me, but one of the handsets or cradles that I had was not made right. When you put the handset in the cradle, it would lose contact with the charger and stop charging. It would then find it again and begin to charge (beeping each time it reestablished contact). It would do it very regularly, and I finally resorted to taping a piece of paper to the inside of the cradle to help the phone sit straight and not lose contact. Absoloutely terrible phone. Get the Uniden. I did, and It's infinitely better. Even if it doesn't have a base unit with a corded phone.
Rating:
Summary: Destruction of the phone by power outages
Review: I had the previous line of phones and paid hundreds of dollars for it only to find that a power outage destroyed line 1. Siemens wouldn't fix it and essentially told me I was out of luck. I swore never to buy another Siemen's product. I was curious about the new generation phones and I see that they still have the identical problem. It doesn't surprise me. They showed zero interest when I reported the problem so how could they redesign the next generation of phones to deal with it.
Rating: 
Summary: This set has been really great for me
Review: Good range, excellent sound quality, loaded with features. In the Fisk Mansion we needed a way to have a bunch of phones without ripping out the walls and this worked great for us.
Cons :
Hard to get to line 2 from remote handsets.
SpeakerPhone is not loud enough.
No flash switchhook feature on remotes for call waiting (that I know of).
Rating:
Summary: What a disappointment the Siemans 8825 was!
Review: I purchased this phone system in May, 2003. (Spent about $350.00, incl. a 2nd handset.) During the past year I was without the phone for a month while waiting for the base unit to be repaired (by Siemans). After a power outage in June, 2004 Line 1 no longer worked (a busy signal if you called it). After troubleshooting it with their "Tech Support", I was told that I have to take it to an electronics repair store. Siemans will not repair it - even at my expense. The base unit is just too prone to problems. I definitely will not purchase another Siemans telephone system.
Rating:
Summary: The Worst Phone
Review: Real quick...read the other reviews here and you will understand and see they all have the same theme: THIS PHONE SYSTEM IS TERRIBLE.
Rating:
Summary: Siemens Gigaset 8825
Review: - Phone & its handsets are mediocre at best.
- Siemens support not very forthcoming/helpful.
- Design & features not well or professionally thought out.
- No battery backup for date / time. Any power loss requires resetting;
- Speakerphone on handset, but does not 'mute';
- Controls not easy to use;
- Phone's number listing not easy to enter or maintain.
At first glance this unit appeared promising. I am very disappointed, with the telephone, the headset(s), and Siemens. I have found a replacement system, which will cost less, and do more. I will never by a Siemens product again.
Rating:
Summary: Gosh, I REALLY hate this phone
Review: I would rate this phone system a negative 5 stars if possible! I purchased it, along with four additional handsets, when we moved into a very large, old home. I did so on the recommendation of the man who wired our home, and ignored all the poor reviews I read here on amazon.
All of the problems have been spelled out already -- poor range, clicking sounds, etc. In addition, it has WAY too many unneccesary options and bells & whistles, which only muddle up the display and menu options -- I can't for the life of me figure out who would use half of them. My husband gets many calls in the middle of the night, and has almost thrown the thing in the toilet several times out of frustration.
Don't waste your money -- PLEASE don't make the mistake I made, and ignore all the negative reviews; I'm now saddled with a very expensive phone system that I can't stand, frustrates everyone in the house, and that I can't really afford to replace.
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