>power-off switch there is NO power switch in phones. My first GSM phone was something like Nokia 2110, and even that had no power switch. Cellphones have a S

>power-off switch there is NO power switch in phones. My first GSM phone was something like Nokia 2110, and even that had no power switch. Cellphones have a SLEEP mode, they NEVER turn off. Just like laptops (there is always at least one processor running, EC) and PCs (since ATX). You can compare it to a turned off PC. In principle its off, but network card is still linked with ethernet switch and listening for WoL packets.