Which is the correct sentence

Question

Sobre/en/Por - "on" (por -also means "on" according to duolingo(site)

1) Los domingos ella habla con mi madre por teléfono. 2) Los domingos ella habla con mi madre sobre teléfono. 3) Los domingos ella habla con mi madre en teléfono.

Answer 1

Methods of transport and communication generally use por.

Answer 2

"Por teléfono". "Por" very often means "by". On the other hand, let us understand why, in English, we talk over (or on) the telephone. This is because the voice (the talk) is transported over (or on) the telephone and its lines of communication.

I like this type of explanations. - 003492fc, Aug 26, 2013

Answer 3

Second one is right Los domingos ella habla con mi madre sobre teléfono ( On Sundays she talks to my mother on phone).

I am sorry but I disagree. "sobre" in this context would be used if they were talking 'about' a telephone. As rogspax said, "por" is generally used for methods of communication. - 003492fc, Aug 26, 2013

I agree with rogspax and atxeko, if is used "sobre" they would be talking about the characterisctics and functiones of the phone... Sorry if I have mistakes, greetings. - 007e54d7, Aug 26, 2013

Answer 4

Yes, 'por teléfono' but I think of 'por' as meaning 'by' rather than 'on'. She isn't really located on (or on top of) the telephone.