Walkie-Talkie Apps on cell phones still require working Internet access

Another reminder.... Walkie-talkie apps on smartphones, like Zello, still require working Internet access. They don't work without cell or wifi service and internet access. Zello keeps reminding people, it REQUIRES internet access; but people don't get it. https://www.reuters.com/article/factCheckNew/idUSL1N2Q31SN Only about 5% of households have a NOAA/Weather radio with battery backup (slightly higher in tornado alley).