[mikester]

Having been a cable installer you should realize that the cable system is a "best effort" infrastructure while the phone system is a redundant 99.999% regulated uptime system.

You can say you will use your cell for 911 but that, at least for the moment, goes to the highway patrol - which then has to route your call to the correct location.

I will never get rid of my basic telco service having worked for TWC in the past and having a knowledge of their infrastructure and the workings of VoIP. I would not suggest anyone to depend on it in an emergency.