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mounted adjacent to the headset
jacks.
When the intercom is in ALL
mode, the pilot can speak on the
phone only if the mic selector switch
is in TEL position. All intercom
positions will hear the telephone
conversation. Anyone who places his
or her switch into the "offhook"
position will also be heard on the
phone. All will hear selected audio.
Com 1 audio is automatically heard in
the headsets. The pilot will have
transmit capability on Com 1, simply
by using the PTT switch.
In CREW mode, the pilot and
copilot may use the telephone, with
their respective hook switch (the pilot
selects TEL on the mic selector). Any
passenger who places their switch
into the offhook position will also have
access to the phone, and all four
passengers will hear the
conversation.
In ISO intercom mode, when the
KMA 28 is in the TEL mode, the pilot
position is in the "Phone Booth." Only
the pilot will hear the telephone, and
only he will be heard. He will also
have access to Com 1, and will
transmit on that radio using the PTT.
All selected audio is provided.
In all cases, only the pilot (and
copilot in ALL or CREW) will hear the
cellphone ring. At that time they can
chose to allow a passenger to take
the call, or answer the phone.
NOTE: Because the phone uses an
intercom circuit, all stations on that
circuit will lose intercom capability
when it is in use.
KMA 28
11
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