IND - Indicator control for CRMIV LEDs, buzzer etc.
From Zenitel Wiki
Syntax
IND <phys.no> <key.no> <led.no/buzzer> <ind-type> [ON/OFF]
Example
IND 2 23 2 3 ON – Station 2, key 23, turn green led, fast flashing, ON
IND <phys.no> <key.no> <led.no/buzzer> <ind-type> [ON/OFF]
IND 2 23 2 3 ON – Station 2, key 23, turn green led, fast flashing, ON