Meaning of 混線 in Japanese

Definition of 混線

こんせん(konsen) 【混線】

(n, vs) crossed wires or lines (of communication); confusion
雨くらいで電話が混線してたら日本なんて大変ですよね。
If rain was enough to get phone-lines crossed then Japan would be in a right mess, wouldn't it?

雨あめくらいで電話でんわが混線こんせんしてたらする日本なんて大変たいへんですよね。

If rain was enough to get phone-lines crossed then Japan would be in a right mess, wouldn't it?

混線こんせんしていますする。

The lines are crossed.