An agent queuing system implemented without relying on a private branch exchange. The queuing system can be cloud-based and routes calls to agents, for example, through a first-in/first-out (FIFO) queue. Clients are assigned a unique number that identify one or more queues. When a call is received, a database maintains the unique number that was called and the associated company information is retrieved, along with any queues allocated for their company. A call is placed to the next available agent from the selected queue. A recording is played to the agent identifying the queue the call is arriving from and the agent is prompted to accept the call. If the call is accepted, the agent is taken out of the available agent pool for the duration of the call. The call can be routed without exposing the phone numbers of the caller or agent involved in the call.