Owners set this under Settings: Lead flow shows every source, how many leads it sends and who gets them; Lead routing & groups sets rules by source, city and price, with round robin inside a group and take-back if nobody answers; Ponds are shared pools the team, or a few members, claim from.
See where leads come from
Open Settings, then Lead flow.
Make a group
In Lead routing & groups, put the agents who share a kind of lead in a group.
Add rules
Send a source, city or price range to a person, a group (taking turns) or a pond.