Orchid Telecom 2 Line 6 Extension Telephone System With Attendant   £119.15

I just wanted something to enable me to have a home office and a home sharing the same phone line, and this little box does the job decently enough, for about the cheapest price you can get. It took a little time to program, but that is a one-off, and allegedly it will not lose its setting on a power-cut. Just need to work out how to avoid hearing Fur Elise as the call is transferred :-)