Telephone Spam Sucks

Need I say more? The people who actually know me call on my mobile. Telemarketers and surveyors auto-dialers continuously dial the land-line. I'm seriously thinking about disconnecting the house phone.
I keep the landline, turn off the ringer and know that a 911 call can be instantly traced by cops/firefighters if I need it. GPS tracking tech isn't all there yet last I checked.