We currently have a Sharp UX-218 telephone/fax machine which requires replacing and would like something similar although not necessarily the same make. 

We need to be able to transfer calls to our extension and an answer machine built in if possible.

The cost of replacement cartridges will be a deciding factor too as our current machine does not require ink and therefore this will be an extra continued expense for us!

We are a BT customer.

Hopefully the price will be under or near to £300.