if you can get one of these at well under their retail, they are very useful: excellent quality for conference calling, good wireless connectivity, connects to most standard DECT base stations, simple to use and very good for a small home office or business. At retail prices they are expensive, but if you can get one for £50-£90 then it's worthwhile, if you need a business conference phone.
I am self employed and work from home. Having suffered with my home phone speaker function for a few months I decided enough was enough. I had seen plenty of the wired versions of the Polycom 'spider phones' in the office so I was familiar with their functioning. Before buying, I did consider other models and brands but the Polycom stood out in terms of reviews so I made the purchase. Since buying, my teleconferencing has improved considerably. During international calls, the speaker is clear and even when an occasional bad connection with a conference member occurs, the volume control can be turned up enough to correct and contunue without having to restart the call. I have also checked with colleagues to ensure they hear my voice clearly on the other end. The wireless pod is painless for moving from room to room without messy cables and invaluable if I need to answer the door or multitask whilst on a long call without missing a question. I have the phone connected directly to the phone socket but it can also be connected to a PC for Internet calls. Battery life on a single charge with about 6 hours use and 18 hrs standby is comfortable although I typically leave it plugged in unless on the move. My only minor issue is that occasionally (every week or so) the pod disconnects and reconnects to the wireless box. It does this automatically and I cannot work out the cause but it can be annoying if it happens in the middle of the night as it beeps. However, on the whole I am very impressed with a well designed product that performs exceptionally well and makes long conference calls a lot easier.