Our telephone is a bit broken

For some reason our telephone is not working properly, when anyone calls we have to answer the phone within that first ring, otherwise the phone stops ringing and you (the person on the other end of the line) hear a nasty static white noise type of noise.
The answer phone doesn't kick in or anything either.
We can make outgoing calls no problem though.

So if you ring and i don't answer but you think i might actually be in then you could always try again in a few minutes cos in those few minutes i might have been able to find the phone and put it in my pocket or something.
Or you could call me on my mobile and i can always call you back.
I do get 300 free minutes after-all from 3.
And if your on 3 too, i get another extra 300 free minutes to call other 3 users.
Not bad for £15 a month.
If only the network was a bit better, but that is a whole other story.