the selected Group Contact (Group Call, Multigroup
Call, or Site All Call). It does not allow you to make
other types of calls.
Making/Receiving Calls in Fallback Mode
Calls are heard only by radios that are
monitoring the same Fallback channel and
selected to the same Group. Calls are not
networked to other sites or other repeaters.
Emergency voice calls or Emergency Alerts
are not available in Fallback mode. If you
press the emergency button in Fallback mode,
the radio provides an invalid key press tone.
Display-equipped radios also show the
message, “Feature not available”.
Private (radio to radio) and Phone calls are not
available in Fallback mode. If you attempt a
call to a private contact, you will receive a
denial tone. At this point you should select a
desired group contact. Other non-supported
calls include Remote Monitor, Call Alert, Radio
Check, Radio Enable, Radio Disable, Text
messaging, Location Updates, and packet
Enhanced Traffic Channel Access (ETCA) is
not supported in Auto Fallback mode. If two or
more radio users press PTT at the same time
(or at almost the same time), it is possible that
both radios transmit until PTT is released. In
this event, it is possible that none of the
transmissions will be understood by receiving
Making calls in Fallback mode is similar to normal
functioning. Simply select the group contact you wish
to use (using the radio’s normal channel selection
method), and then press the PTT to start your call. It
is possible that the channel may be in use already by
another group. If the channel is in use, you receive a
busy tone and the display will say “Channel Busy”.
You may select Group, Multi-group or Site All Call
contacts using your radio’s normal channel selection
method. While the radio is operating on the Fallback
Channel, the Multigroup operates just like other
Groups. It is only heard by radios that are currently
selected to the same Multi-group.
Returning to Normal Operation
If the site returns to normal trunking operation while
you are in range of your Fallback repeater, your radio
automatically exits Auto Fallback mode. You hear a
Advanced Features in Connect Plus Mode