In the docs (https://www.zoho.com/crm/developer/docs/api/v2/insert-records.html) there is a list of "System-defined mandatory fields for each module". Under Events it states:

"Event_Title"- Single Line

"Call_Type" - Picklist

"Start_DateTime" - Date/Time

"End_DateTime" - Date/Time

I can find all API names under Events except the "Call Type" field. Is this correct?