What does SMS stand for?
AnswerShort Message Service
SMS is the Short Message Service used to send text messages between phones.
Tech · Facts & stats
Phone facts & stats
7 fact-checked facts about telephones, each with the reason behind it. 5 more are in today's round and join this page after it closes.
The basics
Early telephone calls were connected by hand by operators working at what?
AnswerA switchboard
Switchboard operators connected calls by plugging cords into jacks.
Going deeper
On a standard phone keypad, which number key carries the letters W, X, Y and Z?
Answer9
The 9 key carries WXYZ, and the 7 key carries PQRS.
Which number is the standard emergency number across the European Union?
Answer112
112 works as the emergency number in every EU country, and on many mobile phones worldwide.
Why are mobile networks called 'cellular'?
AnswerCoverage is divided into areas called cells, each with a base station
A cellular network splits a region into cells, and calls hand over between base stations as you move.
Expert level
According to Alexander Graham Bell's notes, what were his first words spoken over the telephone?
Answer"Mr. Watson, come here, I want to see you."
Bell recorded calling his assistant Thomas Watson in March 1876; 'What hath God wrought' was Morse's telegraph message.
What does DTMF, the technology behind touch-tone dialing, stand for?
AnswerDual-Tone Multi-Frequency
Each touch-tone key sends two tones at once, one low and one high frequency.
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