The person wanting to connect the caller with a third party may place the caller in a parking bay.
The caller hears music, and the intermediary has both extension channels available for use. Once the necessary calls have been made, conferences set up, availability determined, etc., the intermediary can pick up the call in the parking bay and transfer or respond as required.
Should the time the caller spends in the parking lot exceed the specified timeout period, the action configured for orphaned callers is initiated. This could include playing an announcement to the caller and keeping the caller in the bay, or transferring the caller to reception.