ringing line preference 振铃优先
code ringing party line 选码振铃合用线
combined line & ringing key 听话振铃合用键
party line ringing 同线电话振铃
Line is ringing 通道正在振铃
party line ringing key 同线电话振铃电键
CO Line Ringing Assignment 电话铃响设定
combined line and ringing key 听话振铃合用键
Better still, a tough line in favour of competition in such a big industry would send a ringing message to monopolies in other branches of the economy.
ECONOMIST: Mexico
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