Route by address on arrival, because a City inquiry and an Edwardsville inquiry need different answers
The first useful thing to know about any inquiry is where the house sits, since geography decides the drive, the paperwork and often the price.
Three inquiries can land in the same hour and require three different handlings. A house in Tower Grove. A house in Chesterfield. A house in Belleville, across the river and under another state's rules.
Write the routing rules once. Which areas get a same day call. Which get scheduled on a set day because you batch that direction. Which get a polite decline with a referral to somebody who does work out there, which earns you more goodwill than silence ever does.
Batching by geography is not only an efficiency move. It lets you offer a specific day instead of a vague window, and a specific day books far better than a promise to be in touch.
Keep the rules written down where whoever answers the phone can see them. Intake decisions made from memory drift within a month, and nobody notices until the pattern shows up in a bad quarter.