How to pronounce“callor”in English

you who um who have the great uh Fortune of raising funds how do you actually keep yourself motivated to do this work and um I was blown away a couple yearsago when I started doing this research we found that a five minute intervention caused for the average callor 500% increases in weekly amount of moneyraised which is a staggering amount of money so if you want to quantify that we have 23 callers who in an average week bring in an extra about $38,000 for the