Rang 3 times then hung up. Caller Id was AURORA IL.
It occurred to me, why in the last year or two they are only ringing 1 - 3 times. They have figured out that if no one answers by 3 rings the probability of getting voice mail or an answering machine sky rockets. Since there is no value to them of leaving a message they hang up. Plus they don't have to pay for the call. Keep in mind that the ring signal is generated by the local switch and no synchronization occurs. Also some call blockers swallow the first ring (can you say serial connected CPR).