Gradwell Mobile allows you to use your mobile phone as a fully integrated Hosted PBX extension, simply by adding a SIM card to your handset.

You use a land line number on your mobile phone, so you can take calls to your office phone number on your mobile handset – and it is a proper mobile phone call, no fiddly VoIP is required.

You can also send and receive SMS messages from your mobile handset, using your landline number.

With all the features of a Hosted PBX and no long-term commitment, Gradwell Mobile delivers high speed, business grade telephony and mobile broadband.  

Personally, I will be trying out this. With no long term contract, what’s to lose? :)

I will be interested to hear how you get on wit this. I posted about a few months back:

http://www.saynoto0870.com/cgi-bin/forum/YaBB.cgi?num=1287260876