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Reference.org
Line hunting
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<p>In <a href="/facts/Telephony/2GwTTepw">telephony</a>, line hunting (or hunt group) is the method of distributing phone calls from a single <a href="/facts/Telephone_number/Px4q5qFo">telephone number</a> to a group of several phone lines. Specifically, it refers to the process or <a href="/facts/Algorithm/fnl5NmRt">algorithm</a> used to select which line will receive the call. </p><p>Hunt groups are supported by some <a href="/facts/Private_branch_exchange/eLWvlhzs">PBX</a> phone systems. Also, some phone companies will provide this feature for a small fee (see also: <a href="/facts/Centrex/eUUxYVrq">Centrex</a>). In the tariffs of some telephone companies, one may obtain hunting for free, but forward on busy is a charged service. </p>