Normally there are enough beeps and sounds from electronics onboard a vessel that it can be sometimes be a little hard to keep track of what device is responsible for the sound, let alone what it is that you need to be concerned about. Cortex does not add fuel to this fire. Instead, Cortex uses voice alerts so instantly you know what it is you need to be paying attention to.
When collision alerts are enabled, and an alarm is triggered, Cortex will announce the alarm in a voice with the relative direction of the highest priority target. For instance, if the collision or MOB alert is triggered, "Collision alert port bow" will sound several times. As the target moves across and into your projected course, "collision alert ahead, collision alert ahead," may be broadcast over the Cortex system, with the volume increasing.
If the alarm is not acknowledged on a handset or via the Cortex Onboard app a hazard horn will sound, and will get progressively louder and continue to sound until acknowledged or the target is no longer triggering the alarm.
Note, the directional alarm feature also applies to an MOB alarm triggered when an AIS MOB position report is received.