I have an unused landline. A just in case. Since I have been through natural disasters, I have quite a few just in cases. I have every kind of back up cell charger including AA battery, extra cell batteries, car, solar... probably more. Oh! I do not have a hand crank phone charger. They're all too flimsy, in my experience.
I have food and water for humans and pets, wind up radio, lighting, ammo, etc. The only things I'm missing are a ham radio and an inoffensive emergency toilet.
In non-zombie apocalypse times, I love my android phone's ability to call free anywhere at any time. Afghanistan is my favorite place right now.