The short answer
Set up offline information, Wi-Fi calling, backup power, and a household contact plan before cellular service fails.
Step by step
Enable and test Wi-Fi calling, confirm the emergency address, and know how to switch it off if local Wi-Fi also fails.
Download essential maps, contacts, tickets, account numbers, and authentication recovery codes for offline access.
Keep phones, battery packs, and vehicle chargers ready, especially before severe weather.
Choose an out-of-area contact and agree where household members will reconnect if calls and texts are delayed.
During an outage, use official carrier and public-safety updates, conserve battery, and avoid repeatedly placing nonessential calls.
Before you finish
Keep screenshots, receipts, chat transcripts, confirmation numbers, and the first bill after a change. Carrier terms and account eligibility can change, so verify the final price and conditions directly before submitting an order.