Common calling refers to an ordinary occupation engaged in by a person. Common calling is protected by the Privileges and Immunities Clause. Common calling is also a commercial enterprise that offers services to the general public. A person exercising a common calling is legally bound to serve any one who requests the services. The question whether an employee is engaged in a common calling is a question of law which is to be decided from facts of each individual case.
In Cukjati v. Burkett, 772 S.W.2d 215 (Tex. App. Dallas 1989), it was held that a person engaged in a "common calling" is one who performs a general task for a living.
Innkeeper and common carrier are examples of persons engaged in common calling.