[asterisk-users] Ringing phones

[Matt]

Hi,
I have a system that connects to the PSTN.    What do I need to do so
that when a call comes in, the system will start ringing the hunt
group I have setup but not actually answer the call?  The problem is
the system is answering the call, and then passing 'ringing tones'
back to the caller, so this makes the phone companies
call-forward-no-answer not work since the telco thinks they have
answered!