Comment by DWakefield

I second that thought. Years ago on a Nortel PBX, we had a line in the factory where I work that had a fault. It would intermittently dial my extension (411) and I figured that it was from pulse dialing. Eventually the fault in the line was fixed and, along with that, the 'phantom' calls I received from that extension. Interesting coincidence that in both cases the number dialed was 411. I guess I'm lucky our phone didn't dial 911!