What type of clause is shown in the parentheses whomever you are calling?

The clause in parentheses, "whomever you are calling," is a noun clause. It functions as the object of the verb "calling" and can act as a subject or object within a larger sentence. Noun clauses typically begin with Words like "who," "whom," "what," or "whomever." In this case, it specifically refers to the person being called.