Dial-in to show engaged when 'congested' ?!

[news <news@xxxxxxxxxxxxxx>]

Here in 3rd world S.Africa where dial-up costs are substantial [relative
to earnings] the dumb ISPs don't feedback a telco-line-engaged signal,
when the traffic is already too high to take on extra callers.

The result is that you are charged for a futile/valueless connection, 
which just times out or keeps you on hold while costs accumulate.

Is there any good reason why the 'engaged signal' can't be fed-back
to save the caller useless charges ?

Thanks for info,

== Chris Glur.