How To Activate Craiglist Phone Verification With Help Pf Google Voice.

Hey

I am New In craiglist.

I have a google voice Number. I know there is a way to activate craiglist account using google voice number.
But Unfortunately I do not know, How to Get craiglist code in Google voice Number.

Can anyone Help Me.

What I have to do.. What type of setting I have to setup in my google voice account so I can able to get craiglist code in My google voice number.

Waiting for response.

Thank you