Ring multiple exten

How do I make it so multiple extensions ring when only one is called?

My example is I have one line from the PSTN and I want it to ring all extensions in my house.

Cheers!
Dave

exten => 500,1,Dial(SIP/100&SIP/101&SIP/102)

I think riddlebox has given you the answer you need, but what you actually meant to ask was how to ring multiple devices.

To really ring multiple extensions, you would need to use Local channels.)

Thanks guys that’s what I was looking for.

Dave