Welcome to the community, @Letron_Brantley!
You would need to create 3 tables: “contacts”, “phone numbers”, and a join table called “phone calls”.
The join table would act as the “intersection” between contacts & phone numbers in a “many-to-many relationship”.
Each record in this join table would be a phone call (i.e. a unique combination of contact, phone number, date/time of the call, and any notes from that call).
(You would also use linked record fields to connect the tables together, and lookup fields to pull in information from one table to another table.)
You can read more about “many-to-many relationships” in Airtable’s documentation here: