An official website of the U.S. 
Activity 1: Review public information available for several large incoming call services, particularly focusing on their operations, metrics, and results.
Activity 2: Contact entities with large incoming call telephone services to obtain unpublished details of their operations, metrics, and results.
Activity 3: Review IRS operations, metrics, and results of their toll-free telephone service.
Activity 4: Compare and contrast the operations, metrics, and results of IRS toll-free telephone operations to those of other large entities with large incoming call services.