1513-02: Handsfree Reply (Handsfree Answerback) [System: > Options: > Setup: > Intercom (1513):

Use this option to enable or disable system-wide Handsfree Reply for voice-announced Intercom calls. If you enable this option, you must also enable 1513-01: Intercom Voice Announcements [System: Options: Setup: Intercom (1513): Voice Announce].

1513-02: Handsfree Reply (Handsfree Answerback) [System: Options: Setup: Intercom (1513): Handsfree Reply]