[Asterisk-Users] Announcement to caller when called party has picked up - without initial Answer()?

[Eric Wieling]

Remco Barende wrote:

> What you want is impossible!
> 
> How can you expect Asterisk to play a message to the caller without 
> answering the phone?

One-way audio before answer is a pretty standard telco feature with 
PRI service in some parts of the world.