What does sos mean5/20/2023 It also led to the development of radio and television. The invention of wireless communication helped sailors to save lives during World War I and II. However, you can still use your iPhone to make emergency calls and hence, the name SOS. Morse invented the electric telegraph, which allowed people to transmit information over long distances. The SOS icon or SOS-only text means that there is a problem with your iPhone’s cellular network and therefore, you cannot make or receive regular phone calls, send messages, or use cellular data.
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