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A PCRE internal error occured. This might be caused by a faulty plugin
<note>遇到问题坐席与用户已经挂断，当坐席再次外拨时发现无法外拨，内线也无法拨通，core show channels里查看还是up状态，可如下解决。</note> <code>core set verbose 0 core show channels concise channel request hangup</code>
