Several features time the ringing when an ACD call is delivered to an agent. You can use the RONA timer in conjunction with other timers.

When a coverage timer expires, RONA timing is canceled only when the call goes to coverage. If RONA times out first, the other timers continue timing or are stopped and can later be reset. RONA interactions with other timers are summarized in the following table.

Timer	Description	RONA timer Interaction
		RONA timeout	Restarted after redirection
Split DA	Split Call Coverage Don’t Answer (non vector-controlled)	Stopped	If requeued or delivered to another agent
Covering DA	Covering Point Direct Agent (DA) - Subsequent RONA	Stopped	If redirects to covering point
Agent DA	Agent DA Coverage	Stopped	If covers to direct agent with coverage
NATO	DID/CO Trk No Answer Time out	Continues	NA
WAST	Wait Answer Supervision Timer	Continues	If ringing destination or RONA redirection fails

If you want RONA notification and redirection, set the number of rings or equivalent time for a RONA time out to a period shorter than other time out periods. DA timers start when a call is placed in queue and continue when the call rings the station. Since RONA starts only when the call is ringing, the RONA interval is usually set to two or three rings, while the DA interval is set to more than 10 rings.

Since queue time is variable, assign a coverage time out period that is greater than the longest expected queue time plus three or four rings, the time the call rings the agent.

The NATO timer starts when the call seizes the incoming trunk. The timer can be the timing before the call is queued by vector processing. Therefore, set the NATO timer to a period greater than the longest expected time before the call rings the agent, including the time before and after being queued, and add three or four rings.

The WAST timer starts when the call rings the agent. Set the RONA timer to a slightly shorter interval, fewer than 10 rings, than the WAST 50-second interval.