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Hi all engineer,

I have unit BT RRE 140 and there's code error 31-51.
Can you help me how to fix it?

Thank you.
Susan
  • Posted 3 Oct 2022 16:04
  • By Susan_Indri
  • joined 10 Sep'20 - 17 messages
  • Indonesia

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The use of "hello" as a telephone greeting is attributed to Thomas Edison. He is said to have suggested it as a simpler alternative to other greetings, such as "Do I get you?" or "Are you there?".