phone volume amplifier

I have the following phone amplifier:
    http://www.dynamic-living.com/amplifier.htm
unfortunately, it has problems.

If I bump the volume up too high it gives feedback. If that wasn't bad enough, the feedback is audible to everyone else on the phone too. I'd like a device that amplifies the volume while also filtering out feedback if it occurs.

The top volume is usually too loud, but when I'm on a phone conference, some of the speakers speak softly and some loudly. I'd love if the phone had a volume normalizer so that all sounds were within a certain volume range.

A mute button (for my headset) would be handy, but it's not required.

There's also a lot of white noise if the volume is boosted too high. There's probably no way to prevent that, but if the device had some sort of intelligence that filtered out some of the white noise then that'd be nice.
HappyEngineerAsked:
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FreshcafeConnect With a Mentor Commented:
I've checked several Sykpe approved models which seem to do just that. I even added an amplified speaker system with subwoofer and it seems to be loud enough to drown out the TV and HiFi but no feedback when I'm on MSM messenger or Sykpe - (my sykpe used for international calls to cells and fixed lines).

It may be the software however that helps so I'm 90% confident that the equipment is sound and will help your situation. There is 1 cordless DECT VOIP phone which may fix your problem but I'm not 100% it works on standard phone lines for your incomming calls.


http://www.maplin.co.uk/Module.aspx?ModuleNo=48343&&source=14&doy=20m10 

it also says it works for Europe and North America , It's the one I want next! Then I may get rid of my fixed line.
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