Ongoing call answering for small business. UK only please.

I am looking for a freelancer based in the UK with a professional voice and manner to answer calls for a very small business from Monday to Friday, 9am to 5:30pm, on an ongoing basis. The rate on offer is 50p per call taken on a 4 week trial basis, rising to £1 per call if retained. All you need to do is answer the phone, take the details and then email them to me so that I can call them back. Easy. English accents only please as I want to retain the impression of a local PA taking calls for me. You will need to have a spare mobile phone (any network) for which I will send you a SIM card so you can start taking calls. Give me a shout if you would like any further information.