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- Reorder_tone abstract "The reorder tone, also known as the fast busy tone, or the congestion tone, or all trunks busy (ATB) tone of a public switched telephone network (PSTN). It varies from country to country; in North America it is a dual-frequency tone of 620 Hz and 480 Hz (roughly a slightly low D-sharp over a noticeably low B-natural on an equal-tempered A440 scale, i.e., an interval very close to an equal-tempered major third and fairly close to but noticeably wide of a just major third) at a cadence of 0.25 seconds on, 0.25 off, i.e., two beeps per second. It is used to indicate that that all circuits (trunks) are busy and/or the call is unroutable, or sometimes that an invalid code has been dialed. A PBX will often also do this for an invalid extension, while dialing an invalid telephone number on the PSTN usually results in playing the triple special information tone and a recorded announcement. Many phone companies in North America often play the reorder tone after the second reading of a recorded announcement explaining why the call has failed. Reorder tone is sometimes confused with the busy signal because they use the same frequencies and differ only in that the busy signal's beeping sounds have a slower cadence than those of the reorder tone.".
- Reorder_tone soundRecording Reorder_tone__1.
- Reorder_tone wikiPageID "3759897".
- Reorder_tone wikiPageLength "2136".
- Reorder_tone wikiPageOutDegree "17".
- Reorder_tone wikiPageRevisionID "699777740".
- Reorder_tone wikiPageWikiLink A440_scale.
- Reorder_tone wikiPageWikiLink Business_telephone_system.
- Reorder_tone wikiPageWikiLink Busy_signal.
- Reorder_tone wikiPageWikiLink Category:Telephony_signals.
- Reorder_tone wikiPageWikiLink Disconnect_tone.
- Reorder_tone wikiPageWikiLink Equal_temperament.
- Reorder_tone wikiPageWikiLink Extension_(telephone).
- Reorder_tone wikiPageWikiLink Frequency.
- Reorder_tone wikiPageWikiLink Intercept_message.
- Reorder_tone wikiPageWikiLink Just_intonation.
- Reorder_tone wikiPageWikiLink Major_third.
- Reorder_tone wikiPageWikiLink Public_switched_telephone_network.
- Reorder_tone wikiPageWikiLink Second.
- Reorder_tone wikiPageWikiLink Special_information_tones.
- Reorder_tone wikiPageWikiLink Telephone_number.
- Reorder_tone wikiPageWikiLinkText "Reorder tone".
- Reorder_tone wikiPageWikiLinkText "number unavailable tone".
- Reorder_tone wikiPageWikiLinkText "reorder tone".
- Reorder_tone wikiPageWikiLinkText "reorder".
- Reorder_tone description "Listen to a reorder tone from North America.".
- Reorder_tone filename "reorder.ogg".
- Reorder_tone title "Example of a North American reorder tone".
- Reorder_tone wikiPageUsesTemplate Template:Listen.
- Reorder_tone wikiPageUsesTemplate Template:Reflist.
- Reorder_tone wikiPageUsesTemplate Template:Telephony-stub.
- Reorder_tone wikiPageUsesTemplate Template:Telsigs.
- Reorder_tone subject Category:Telephony_signals.
- Reorder_tone type Thing.
- Reorder_tone comment "The reorder tone, also known as the fast busy tone, or the congestion tone, or all trunks busy (ATB) tone of a public switched telephone network (PSTN).".
- Reorder_tone label "Reorder tone".
- Reorder_tone sameAs Q7313874.
- Reorder_tone sameAs m.09zh6z.
- Reorder_tone sameAs Q7313874.
- Reorder_tone wasDerivedFrom Reorder_tone?oldid=699777740.
- Reorder_tone isPrimaryTopicOf Reorder_tone.