| 词条 | Tie line |
| 释义 |
A tie line, also known as a tie trunk, is a telecommunication circuit between two telephone exchanges or two extensions of a private telephone system.[1][2] See also
References1. ^{{Citation | author = Atis | title = Tie Trunk | url = http://www.atis.org/glossary/definition.aspx?id=848 | accessdate = 2015-06-08}} 2. ^{{Citation | first = American Heritage Dictionary | last = YourDictionary.com | title = YourDictionary.com: Tie Line | url = http://www.yourdictionary.com/tie-line#americanheritage | accessdate = 2015-06-07 | archiveurl = https://web.archive.org/web/20070620202920/http://www.yourdictionary.com/ahd/t/t0208400.html | archivedate = 2007-06-20}} 1 : Communication circuits |
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