The call termination on Helios on 2N® Analog Intercoms devices can be done as described bellow:
- The busy or continuous tone *) after the call end.
- The ringing tone *) after a predefined count of rings.
- The subscriber 'at the other end' pressed .
- The preset maximum call duration has elapsed.
- 30 seconds after the switch use has elapsed.
- A 2N® Helios button A 2N® Analog Intercom button was pressed during the call.
- The keypad button was pressed during the call (can be disabled).