Testing to ensure callin.io triggers a call from a callin.io scenario

I love callin.io - I have a simple scenario - Facebook Lead Form integrated from Facebook connection to a page - a 2-minute delay in tools, and it connects to a callin.io SDR that qualifies and warm transfers. – I need to test it before I send the Facebook leads through? How can I test the calls connecting to callin.io? Any help appreciated. I am learning to use callin.io more - and getting rid of Zapier - lol

If I could send a Facebook lead through without paying for the ad, I would. I can not figure out how to fake a name and number to see if it can call me.