yes, i looked into it a few years back
i opted for a LO-CAL number in the end ( which the company was crap and then wanted extra money off me, so i binned the idea )
just use my mobile now, 24 hour calls
i also dont buy into the " people dont call mobiles as you can be a pikey " as todays modern biz needs to be accessable 24 hours a day
i have a fax number aswell on my stuff