For people who get a lot of phone calls, a service to allow callers to join a queue of callers who will be automatically notified when the callee is free.

Case 1: Caller calls number. Is informed that callee is busy at the moment and will call back when available. The caller is added to queue of callers and is automatically called when callee is available.

Case 2: Caller uses web interface to book a slot with callee at a specific time. The caller is automatically called at that time and connected with callee.

There will be a webui with estimated waiting time for the call to get through and information about the size queue. The caller will also be ale to configure when the call should be made.