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group busy tone |
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group busy tone [′grüp ¦biz·ē ‚tōn] (communications) High tone connected to the jack sleeves of an outgoing trunk group as an indication that all trunks in the group are busy. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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