A console alert tone is a button for a dispatcher to make a noise to get a human's attention - it is not intended to trigger equipment. But- while not intended to, it sometimes can be used to trick tone alert equipment.
Must be a solid, or alternating tone. Solid tone must be held long enough to make the pager thin it's a 'long' tone. Alternating tone will alert multiple times. Sirens and sweeping won't work. On analog modes, I've had decent results with pulsed tones by using the actual tone and another a Hz or two off; because of they way p25 toens work, I don't think it would work on p25.