2 ms·
It wasn't really SMS, it was another message type riding on top of the same lower-level protocol called SS7. But it seems that's no longer in use and it's all j
by yencabulator 1y ago
It wasn't really SMS, it was another message type riding on top of the same lower-level protocol called SS7. But it seems that's no longer in use and it's all just TCP/IP now.
(Said differently, the radio firmware got good enough that it doesn't need a special "wake up" packet anymore, it can recognize a packet to itself in a low power state.)