Hi Alan
I moved 9 months ago and was unable to take my business line with me, wrong exchange so I moved it to my daughters shop and put it on permanent divert. BT offered me a new Blackberry with no charge for diverting.
Initially I was a bit reluctant to carry two phones but it has been a godsend.
My business line is 9 til when I want it to be, usually about six and then I ether turn it off or just let it go to answerphone.
I feel like I've got my life back, no more calls while trying to have a realaxing beer or eat.
Cheers
Doug