Ringing/Ringback tones in time: Sweden (1955-2024)
Автор: Tons Of TONZ
Загружено: 2024-12-08
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Описание:
TONZ IN TIME: RINGING/RINGBACK (SWEDEN, 1955-2024)
RINGING / RINGBACK TONE: A tone advising the caller that a connection has been made and that a calling signal is being applied to a telephone number or service point (from ITU-T Recommendation E.182, Annex A).
The evolution of the ringback tone in Sweden according to official CCITT/ITU documents spanning from 1955 to 2010.
Timeline breakdown:
0:00 - 1955-1997
0:32 - 1961-1989
1:04 - 1973-2024
1:36 - 2003-2024
All the tones are normalized to -6 dB.
References:
CCITT Green Book Vol. V (1955)
CCITT Red Book Vol. VI (1961)
CCITT Green Book Vol.VI-4 (1973)
CCITT Blue Book Vol II, Fascicle II.2 (1989)
ETSI TR 101 041-2 V1.1.1 (1997)
ITU-T Recommendation E.180 (2003)
ITU-T Recommendation E.180 (2010).
#sweden #ringing #ringback #phonesounds #history #phonetone #phonecall #soundeffects #sfx #tech #technology
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