"Unperfect" Employee

It began about 2 months ago. It was a bright sun-shiny day and our power at work went out. It was only out for a couple of seconds but when it came back on my phone was staticky. I don't mean just a slight buzz. No, I mean full out static.
I have tried everything. I switched the hand set, I switched the cord that goes from the phone to the hand set, I switched the phone, and I switched the cord that goes from the phone into the wall. I have even went to the main phone box to make sure everything was connected.... all to no avail. My boss knows, her boss knows, the BIG bosses know but nobody wants to do anything about it since they don't have to deal with it. Alas, I have resulted to lying or hanging up on people.
When the static gets so bad that I cannot hear the person on the other end I will just hang up. Then, I will high-tail it out of the office so when they call back (and they always do) my boss will have to answer the phone. If someone says something, well "I didn't know anybody was there. I couldn't hear anything but static." Usually I will be on the phone with someone and the static will increase. In that case the phone conversation goes something like this... Caller: "I was wondering if you have SHHHH-CRRRRR-SHSHCOHSNFO" Me: "No, sorry we don't carry that."
The way I see it, if this company wants to make money they should get my phone fixed! I'm doing the best I can but it's awfully difficult to answer a phone when you can't hear anything but SHHHHHH-CRRRRRR-SSSSSHHHHHH-CLSOEINLGKSJEOHASLOHGOWH.