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Ringing (telephony) Ringing is a telecommunication signal that causes a bell or other device to alert a telephone subscriber to an incoming telephone call. Historically, this entailed sending a high-voltage alternating current over the telephone line to a customer station which contained an electromagnetic bell.
This series of telephone evolved through several designs in the 1920s and 1930s, to refurbishments in the 1950s. They consisted of a table-top handset stand and a wall- or desk-mounted subscriber set that contained the components to connect the telephone to the telephone line, as well as an electromechanical bell ringer.
Modern emergency telephone powered by sound alone. A sound-powered telephone is a communication device that allows users to talk to each other with the use of a handset, similar to a conventional telephone, but without the use of external power. This technology has been used since at least 1944 [ 1 ] for both routine and emergency communication ...
A party line (multiparty line, shared service line, party wire) is a local loop telephone circuit that is shared by multiple telephone service subscribers. [1][2][3] Party line systems were widely used to provide telephone service, starting with the first commercial switchboards in 1878. [4] A majority of Bell System subscribers in the mid-20th ...
Tip and ring. 1: Sleeve, 2: Ring, 3: Tip, 4: Insulators. Tip and ring are the two conductors or sides of a telephone line. Their names are derived from the telephone plugs used for connecting telephone calls in manual switchboards. One side of the line is connected to the metal tip of the plug, and the second is connected to a metal ring behind ...
Ringing tone (audible ringing, also ringback tone) is a signaling tone in telecommunication that is heard by the originator of a telephone call while the destination terminal is alerting the receiving party. The tone is typically a repeated cadence similar to a traditional power ringing signal (ringtone), but is usually not played synchronously ...
After the creation of the telephone itself, Watson invented many accessories for it. Most important was the ringer, which would alert someone not standing by the telephone that a call was being placed. The first version involved a hammer, which had to hit the diaphragm; [5] this was followed by a version employing a buzzer. [6]
Western Electric hand telephone set of c. 1930 with its ringer box or subscriber set in the background.. A ringer box is a telephone signaling device, similar to a bell box.It usually contains an electromechanical gong and was used with most early desk stand telephones, such as candlestick telephones and the Western Electric type Western Electric hand telephone sets, which were too small to ...