BT is offering a free BT Synergy 4500 Digital Cordless Telephone Answering Machine worth £58.70 to the first 10,000 new eligible residential customers who sign up for 12 months to Unlimited Evening & Weekend Plan.
There's a monthly cost of £11.25 with Direct Debit and paper-free billing to cover the cost of the line rental and the only catch is that at the end of each 12-month minimum period the contract will be automatically renewed for a further 12-month minimum period unless the customer explicitly leaves them.
The company has also announced that it will 0845 and 0870 calls of up to 60 minutes duration - excluding indirect access numbers and dial-up Internet access - will be free for an undetermined period within a fair usage range (up to 1000 minutes or 150 calls).
BT's free phone offer is valid till the 31st of March 2009. Shifting to the unlimited anytime plan will cost you an additional £4.85 per month. You will also be able to send 200 text messages a month for free and make calls to mobile phones for 7.34p per minute.
Unfortunately, BT has not yet waived the £122.33 cost of connecting a new BT line. You can find out more about the free phone offer here.