2007-06-04 07:00:14 · 3 answers · asked by danilo 1 in Consumer Electronics ➔ Cell Phones & Plans
I think you mean SMS. I think it stands for Short Messaging Service. Text messaging in other words.
2007-06-04 07:03:11 · answer #1 · answered by Uncle Pennybags 7 · 0⤊ 1⤋
i think you can get your answer with this : Additional warning and distress signals followed the introduction of SOS. On January 20, 1914, the London International Convention on Safety of Life at Sea adopted the Morse code signal TTT ( — — —), three letter T's (—) spaced correctly as three letters so not be confused with the letter O (— — —), as the "Safety Signal," used for messages to ships "involving safety of navigation and being of an urgent character." With the development of audio radio transmitters, there was a need for a spoken distress phrase, and "Mayday" was adopted by the 1927 International Radio Convention as the equivalent of SOS. For TTT the equivalent audio signals are "Pan-pan" for urgency and "Securite" for navigational safety.
Wish you luck
God Bless
2007-06-04 07:07:53 · answer #2 · answered by Liz 2 · 0⤊ 0⤋
idk
2007-06-04 07:02:33 · answer #3 · answered by rjwoulf 2 · 0⤊ 0⤋