asterisk users - Jan 2005 - calling an extension after a voicemail is left

Hi All

I am setting up * for use as a voicemail. I have discovered that if I dial the 
phone system and send "#+Extension+messagenumber" (dtmf) that the
"msg" light will
come on on the phones, if 00 messages the light will go off. they are an old tie
onyx vs system. So how can I get asterisk to pick up a line and send these
digits
after a voicemail has been left, even if the person hangs up the phone? would I 
need a script to do this, I'm a noobie at writing scripts? Any experience or
advice
would be greatly appreciated.

Thanks

Joel Duffield