Dail() Function question

I’ve searched and read and can’t seem to either find the correct combination or wording. So here goes…

When using the DIAL() function in extensions.conf like this:

exten => s,n,Dial(SIP/601&SIP/605&SIP/623,10,crt)

all of the phones ring. I answer one of the extensions ringing and the rest keep ringing until the timeout “10” is reached.
Is there a way to answer one of the extensions and have the others stop as soon as it is picked up? Is this a ring group function? Do I need the “cr” options in the Dial() function to make this work?

Thanks, in advance, for your time.



drop the c

def works as expected if rt