A return call routing system verifies that the telephone number of an outbound call being placed by an agent is the telephone number of a contact assigned to the agent. The outbound call is then assigned a tag identifying the contact's phone number as associated with the agent's station. When the routing system recognizes a contact's return call phone number as being tagged, the system bypasses the normal call flow at the call center and the return call is routed directly to the assigned agent's station. A time window for the return call may be set beyond which the return call is directed to the next available agent through a call flow manager.