Originally posted by hbiss:
[i]So, what is the probability of an intermittent short on the line producing a 9-1-1 sequence with the right timing? Obviously quite high.
Here's a thought. What if the short only had to get out a 9 in the middle of a lot of other trash?
I don't know if this is still an issue, but in earlier days of 911, the digits 911 could trigger a call to emergency even if they were buried inside 4 other digits. For instance if you were dialing 339-1123, and if you dialed it really fast, it would trigger a call to emergency dispatch. Additionally it could even happen if 911 was dialed during an active call.
If that were still an issue, then a pulse 9 burried in a lot of other trash being interpreted at 1's could perhaps trigger it. I don't know a lot about the technical end of what caused it in the earlier days as I hadn't done much tech work at that time. I was exposed to it as a police officer/paramedic. I just remember when the city we were in first got 911 we responded to a LOT of 911 hang-ups.
