Phone and Contact Center Minute Limits

I understand there are limits per user per month on Zoom Phone and Zoom Contact Center, based on my invoice having rows for overage costs. I understand where to see the total activity for both of these. What I can't seem to find and neither technical nor billing support can tell me what the limit is on either Zoom Phone or Contact Center licenses. I am just looking at the minutes standard per license of Contact Center Basic SKU and Zoom One Business Plus. Any insight would be appreciated it.