Julie is a committed Christian and does not want to make life difficult for cold callers.
Her natural response to such callers is to talk with them.
After their opening pitch, she asks something such as
“I’m curious, why did you choose this job?
Or “Shame, it must be really hard calling people up with a marketing script all day long”
And she is genuinely interested in the answers.
They do tend to end the call but if they stay on and start to talk then Julie takes the opportunity to tell them about her Christian beliefs and how that affects her life.
When busy, Julie does just say No to callers and puts the phone down as most people do, but that doesn’t get your number taken off their calling lists so you will get more calls.