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13 relations: Call-progress tone, Dial tone, Disconnect tone, Dual-tone multi-frequency signaling, Intercept message, Pat Fleet, Reorder tone, Request line, Signal Transfer Point, SIT, TeleZapper, ToneScript, Tritone (disambiguation).
Call-progress tone
In telephony, call progress tones are audible tones that provide an indication of the status of a telephone call to the user.
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Dial tone
A dial tone is a telephony signal sent by a telephone exchange or private branch exchange (PBX) to a terminating device, such as a telephone, when an off-hook condition is detected.
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Disconnect tone
A disconnect tone in telephony is a tone provided to the remaining party to a call after the remote party hangs up.
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Dual-tone multi-frequency signaling
Dual-tone multi-frequency signaling (DTMF) is an in-band telecommunication signaling system using the voice-frequency band over telephone lines between telephone equipment and other communications devices and switching centers.
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Intercept message
An intercept message is a telephone recording informing the caller that the call cannot be completed, for any of a number of reasons ranging from local congestion, to disconnection of the destination phone, number dial errors or network trouble along the route.
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Pat Fleet
Pat Trumble Fleet is a working American voice actress known as the registered voice of AT&T.
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Reorder tone
The reorder tone, also known as the fast busy tone, or the congestion tone, or all trunks busy (ATB) tone is an audible call progress tone in the public switched telephone network (PSTN) that is returned to a calling party to indicate that the call cannot be processed through the network.
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Request line
A request line or contest line is a telephone line which allows listeners to a radio station (or sometimes a TV station) to call the radio studio or TV studio directly.
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Signal Transfer Point
A Signal Transfer Point (STP) is a router that relays SS7 messages between signaling end-points (SEPs) and other signaling transfer points (STPs).
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SIT
SIT may refer to.
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TeleZapper
The TeleZapper is a device designed to reduce the number of telemarketing-related phone calls a household receives by imitating the tone signal normally played by a phone company to indicate a line has been disconnected.
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ToneScript
ToneScript is a description syntax for the characteristics of call-progress tones.
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Tritone (disambiguation)
Tritone may refer to.
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Gobble screws, Intercept tone, Out-of-service, SIT tone, Special Information tone, Special information tone, Three beeps.
