Rating: 
Summary: Slick idea, poor audio quality and user interface
Review: Having bought a Siemens phone system for a 500 person company, I expected great quality and features and bought the full 4-handset system. I was disappointed. The audio quality is poor, there is lots of interference (especially from the microwave), dropped calls even with good signal, a brain-dead user interface (who thought up using the MEM key for call waiting?), lousy speakerphone with no volume control...I could go on. The user manual emphasizes all kinds of esoteric features but one has to really dig for several of the basics of operation. For example, the fact that the MEM key was for call waiting was not on the quick reference page, nor was there a page at all for call waiting! One positive: I have had excellent battery performance unlike several other reviewers. Bottom line though: Keep looking, wish I had....
Rating: 
Summary: Get this phone... and NiMH batteries
Review: This phone was a replacement for a Panasonic 2.4 GHz cordless that I've used for 6 years. I read all the reviews and decided to get the 4215. I have not been disappointed thus far. Its features are great (though many in number, so lots of menu clicks at times). It's similar to a cellphone in operation and menu structure. Call quality and message quality are great. I love the musical ringtones! With a second handset I can call between the handsets for intercom capability within the house (nice for when I'm in the basement and everyone else is on the second floor).I've read elsewhere that people have had trouble with battery life. Since a lot of people don't properly charge the batteries initially, I thought this would not be a problem. Indeed, initially I had 4-5 days of battery life. But after 3 months the battery life was down to about 2 days. So I got 2 new AA-size NiMH batteries. After I got them I noticed that the stock NiCd phone batteries are 700 mAh, whereas the Energizer NiMH batteries I purchased are 1850 mAh, i.e., over 2.5 times the capacity. We'll see how these work. I took one star off because they went with the cheaper batteries (for a more expensive phone), there is no headset outlet (although I don't use that option very often anyway), and the handset is tapered at the top so it may fall out of your hand before you get used to it (ergonomics issue). The base appears to be geared towards table top usage, since I don't see how it can be attached to the wall. But the footprint is pretty small anyway, so no problem for me.
Rating:
Summary: Never again
Review: I bought this phone for the look and multitude of features, however, there are too many features. After 6 months, I still need to refer to the owners manual for certain things. The quality is okay, but don't talk on the phone when the microwave is on. The handset speaker is the best feature. Also, the voice recognition was cool, until my [child] decided to start using it. If you don't say names the same way each time, it calls someone else. I don't like the extreme lightweight feel to it, makes it feel [inexpensive] and fragile. The battery life was fine in the beginning, but now only lasts about 1-2 hours off the base. Not good when there is no handset locator feature. With everything compacted into this phone, you would think it at least had that! Don't think I'll ever buy this name brand again. So far, Uniden's been the best for ease of use and durability.
Rating:
Summary: Awesome Phone
Review: I love the phone, it is small, lightweight, the battery lasts for a long time, and it has a lot of kewl gadget features. The only down side (reason for 4 instead of 5 stars) is that it has no jack for a headset. One would think that for a hundred dollars that they could put a headset jack in it. Other than that though the phone is awesome. I read a lot of the reviews before buying it and found a lot of them simply absurd. Especially the one complaining about the batteries not comming fully charged. I still bought it though and I am very happy with it; except for the feature I already mentioned. As far as the 'call waiting' goes. I find Call Waiting insulting when I call my friends so I am not that concerned about it. If you are like me? this is a great phone to get, though if the headset thing is really important, then do some more research. :)
Rating: 
Summary: Don't waste your money on this junk.
Review: I have owned this phone for over six months now and I wish I had never bought it. The audio quality is extremly poor, the battery life is terrible and it is very complex to operate, and I'm a technicial professional. This phone was not very well thought out. Who would think that to answer a call waiting that you need to press the MEM button? The TALK button, the END button maybe, but not the MEM button. Thats just one example. My 900Mhz VTech was a awsome phone I should have gone with VTech again. Very dissappointed.
Rating:
Summary: Poor customer support
Review: 1. This phone works fine but the battery life is very short. We've had the phone of about 40 days and the batteries won't hold a charge. I called Siemens and was told (both by the customer service agent and the manager) that they don't warrantee the battery. In my view, a battery that fails after just 40 days is defective, not worn out. I ended up having to purchase new batteries. I can't trust a company that won't stand behind its products.
2. I found the directions vague, confusing and contradictory. I had to fiddle with the phone for about two days to get it set up properly.
Rating:
Summary: DO NOT BUY THIS PHONE!!
Review: I had this phone for about six months and the transmitter in the base went out, making the whole system useless. I called Siemens support and they said there is nothing they can do about it. I must purchase a whole new unit - no way to get a replacement part. I wouldn't recommend this unit to anyone.
Rating:
Summary: Good Looking Disappointment
Review: I bought the phone without doing a lot of research and it has been a major disappointment. Other than the sleek headset I don't have anything good to say about it. There are 2 reasons why I'm really upset with the purchase. #1 the volume on the headset is very low. Compared to my old phone I have trouble hearing people. #2 the battery life is the worst of any cordless I have ever owned. If you don't leave the phone in the base the batteries will be dead within a couple of days on standby, if you talk on the phone or not. If you are considering buying this phone I would suggest you keep looking
Rating: 
Summary: call waiting fixed
Review: My problem with call waiting was solved when I adjusted the flashtime setting to 250, after speaking to the Siemens customer service rep. Just call Siemens in the afternoon if there's a problem and the service rep walks you through the settings until the problem is solved. Everything is now working perfectly. This is the best cordless phone I ever used.
Rating: 
Summary: Call Waiting Limbo
Review: I agree 100% with "A Customer from Rochester"...the FLASH feature is horrible. So much so that I'm thinking of returning the phone. Everything else works beautifully, but if you want to retrieve a call through Call Waiting, you will be incredibly frustrated. I have sent more friends into call waiting limbo without being able to get them back, meanwhile never even having connected with the new incoming call. Buyer beware. One more thing, no keypad lighting as I found out at 3:00 in the morning when I needed to make a call in a hurry. Hope this helps!
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