It is possible that Incoming calls, instead of get answered by the system, stay Ringing until one answered?

It is possible that Incoming calls, instead of get answered by the system, stay Ringing until one answered ?

I had made this in astlinux doing this in extensions.conf

exten => 3199xxxx,1,Ringing()
exten => 3199xxxx,n,Dial(SIP/9900&SIP/2222&SIP/1000,120,tThHKr

but in freepbx I do not how to make all incoming calls only ring without answer until one attendant answered

thanks for your info

A Ring Group will allow ringing for up to 60 seconds, but bear in mind that you can make the “Destination if no Answer” the very same Ring Group, which I believe would mean that you could effectively keep ringing the same Ring Group until someone answers, or the caller gives up.

thanks so much I will try sound logical