asterisk users - Sep 2004 - Ring delay

Hi people,

I'm having some trouble with my analog phone on Zap/1 not ringing directly
when i call it from the PSTN via Zap/4, after about 3 rings the analog
phones rings. Now I understand that there is a slight delay of up to 3 rings
where is the tone detection, so no phantom calls will get through. Anyway is
there any way to disable this or try to tweak it, I want my analog to ring
direct not after 3 tones from the caller. I have set usecallerid=no.

Regards
Fredrik vK