CPR 106 CallBlocker - All in One Call Blocker
User guide at http://www.exteradirect.co.uk/download/product/002788/call%20blocker-%20Manual-106-model.pdf
This unit has 200 updated pre-programmed numbers of the worse known nuisance call offenders stored in the call blocker.
You can now also block up to 1000 extra numbers at the touch of a button as opposed to 100 on previous models.
The CPR Call Blocker will work with a wide range of telephone equipment including corded and cordless phones.