If a station activates Send All Calls with the Send All Calls button, hunt group calls go in the queue, if a queue is administered. If a queue is not administered, callers get a busy treatment if Send All Calls is activated for all the agents.

If an extension is an agent in an ACD split and a hunt group member, the split agent usually has an AUX-work button that also activates and deactivates Hunt Group Busy. If an agent presses the Send All Calls button, the agent becomes unavailable for hunt group calls. The agent becomes available for hunt group calls again when the agent presses the Send All Calls button again.