It is far, far, far more important to start where you are than where you want to be.
Although cellular is part of the communication plan, its best to assume cellular will NOT be available. Even if the technology still functions, the capacity of cellular could easily be overwhelmed.
Communication is recognized as very important during an emergency. It could be communication among household occupants, neighborhood team members, outside the area contacts, or with emergency responders.
Planning for communication, including gathering communication resources and information should be treated as equal in importance to any other plan or resource group.
It's so important, you may want to integrate it into your emergency kits and evacutation and rally-point plans. Evacuation routes and rally points are critical parts of your planning. Being able to communiate among household members can be a very big deal, particularly if the emergency separates household members.
As important is the recognition that the emergency response resoures in your area have a high priority for communication with you.
Engaging above a community is all about resoures. The sooner you can communicate status and call for resource, the greater the quiality of the neighborhoods response.
FRS - Family Radio Service
GMRS - General Mobile Radio Service
CB - Citizen Band Radio
SatPhone - Satellite phone
Cellular - cccc
400mhz - Radio