To keep Landline or not, just what is the best suggestion

I have a landline with long distance & dial up internet for which I pay about $65 per month and do not use very often, except for the internet. I pay $15 per month to internet provider, Cell phone bill of $55 per month and cable tv for $50. But is it feasible to drop the landline? I have children at home and do have babysitters once in a while therefore if there was an emergency the cell phone nor vonage or something similar would not have the exact address of the home. As far as bundling we live in a rural area therefore there is not much choice as to bundling. Any other suggestions, experiences, ideas?