Call Center Queue

Objective: Implement a call routing service to handle incoming calls and route them to an appropriate employee.

• There are three levels of employees: respondent, manager, and director
• If one of the employees is unable to respond to call, escalate the call to the next higher level of employee
• If all employees are currently busy, place call in queue
• As employees become available, assign an appropriate call to the employee

Original Source of Problem: Cracking the Coding Interview.

Call Center Question. PG 127