At 13.39 18/11/99 +0800, you wrote:
>Hi everyone,
>
>        I'm quite new to the list but been lurking for sometime now, so
pls. be
>gentle... I'm doing a F84 project that involves the telephone, How can i
>detect if the called party have answered the call i made ? What control
>signals does a typical telco uses to supervise the line ?
>
>All the best,
>

at least here in Italy you get no signal at all.

You infer that a call was answered when you don't get any ring back signal
any more (and no busy signal altogether).

Duilio Foschi