Garmin 240 Pilot's Manual page 9

Press the ICS Key to mute the music during intercom operation.
Press the PILOT ISO Key for Pilot or Crew isolation, depending on
configuration.
Mode
ALL
(PILOT ISO not
Selected)
PILOT (PILOT
ISO Selected)
CREW (When
Crew Isolation
is configured
and PILOT ISO
is selected)
*A configuration option can allow music for these positions.
TelePhONe
The GMA 240 provides a full-duplex telephone interface. Press the
TEL Key to activate telephone operation. When the telephone is active,
operation depends on the ICS mode. See the ICS Isolation Modes &
Telephone Distribution table. Telephone communication is much like using
the intercom, allowing both parties to talk at once.
190-00917-00 Rev. A
Pilot Hears
Selected Radios,
Alerts, Telephone,
Pilot, Copilot,
Passengers, Music
Selected Radios,
Alerts, Telephone,
Pilot, Music*
Selected Radios,
Alerts, Telephone,
Pilot, Copilot,
Music*
ICS Isolation Modes & Telephone Distribution
Garmin GMA 240 Pilot's Guide
GMA 240 Audio Panel
Copilot Hears
Selected Radios,
Alerts, Telephone,
Copilot, Pilot,
Passengers, Music
Copilot,
Passengers,
Music
Selected Radios,
Alerts, Telephone,
Copilot, Pilot,
Music*
Passenger Hears
Selected Radios,
Alerts, Telephone,
Pilot, Copilot,
Passengers, Music
Copilot,
Passengers,
Music
Passengers,
Music
9