Ok, Im now using Vonage, and have asked them to close my VM landline and take its number accross. Vonage is working 100% in fact better.
Support
When it arrived it didnt work, turned out to be a faulty RJ45 lead, Vonage support gave me a months free credit for supplying a faulty lead
Testing it out, Rang Canada (£0.02/min) very clear no problems. Rang around the UK, nobody could tell I wasnt using a land line.
So many extra features, even call waiting will show the number who is calling. Features that VM always charge for, and a lot more are all free.
999/112 is supported, you give Vonage your name and address to be used with the service.
The best is, you just unplug your phone lead from the VM line, and plug it into Vonage socket, and away it goes. Extentions, Fax machines etc all work 100%
Systems using a PC/USB isnt the way forward