Function for recognizing page of access?


Is there a means within a trigger formula of determining by which page a user is accessing a table?

For example, let’s say you have a communication log table used for logging both incoming and outgoing communications, but you wanted to set up one page for users to log incoming communications to that table and a separate page (with different visible columns or widgets) for users to log outgoing communications. There’s a choice column for indicating whether a record is for an incoming or outgoing communication.

Is there a way to set up a trigger formula on that choice column to set the appropriate value based on whether the record is being created via the Incoming Communications page or the Outgoing Communications page?