two-way conversation

[Sambodia]

Hello,

When answering a question, what's the difference between:

Q: Was John talking on the phone?
A: Yes, he was.
and
A: Yes, he was talking.

Thanks in advance

Sambodia

[Rover_KE]

A: Yes, he was. This is more natural. There is no need to repeat talking.

Rover

[Sambodia]

Thanks a lot Rover
Sambodia