Philips KALA 300 Dect cordless phone with additional handset

i am quite happy with it have had since 2004 no problems except complicated and so many functions hardly ever used any of them , BUT i was thinking the other day HOW MUCH DOES IT COST TO RUN no where in the information does it tell you ,if you think you can just plug in a handset ,Wired and it costs you nothing ,are they realy worth it and hoe much power would the country save without them ,for very little inconvenience

I've had this Philips KALA 300 Dect phone for 3 years now and it has served me well, but it's basic and I'm looking to upgrade.

Good audio reception all round from the Philips KALA 300 including answer machine and handsfree. Nice bold menu icons but the LED scrolling numbers are sometimes difficult to make out - particularly 8 and 0. Good signal range inside and outside the house. Setting the phone up at the start was a bit of a fiddle until you got used to the button presses. Some extra features such as a keypad lock so that you can put the phone in your pocket when you are outside the house, and a lit display when phone is activated in the dark, would have made this product even better.