Flexitalk:
 
A door phone system for professional or private use without programming and
nearly without installation. A modern design with a high quality of sound.
The push button is illuminated discretely and makes it easy for the visitor
to find his way in the entry.

The Flexitalk is connected between the standard telephone line and the
(wireless) phone(s). When someone pushes the button, the phones start
ringing in a special tone. With the Flexitalk you can also speak to your
visitor by way of a wireless phone. So you never ever will miss a visitor
again, even when you are taking a bath or when you are working in the
garden.

If you are on the phone the moment a visitor arrives, a tone warns you that
someone is at your door phone. You can put the phone call on hold by pushing *. With the normal keypad on your phone you can open your door. Optional a black & white or colour mini camera can be built in. A LCD screen, Computer screen or standard TV shows a high quality image of your visitor.