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ground start |
Also found in: Wikipedia | 0.02 sec. |
ground startA method for seizing a phone line. Widely used by PBXs, the ring lead of the line (tip and ring) is momentarily connected to ground, and the CO detects the current. The CO grounds the tip lead of dedicated lines, which the PBX can test to determine if the line is dedicated for use. Contrast with loop start. See ground. 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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