User Manual

In transmit inhibit mode the radio joins group calls for any group that the radio is monitoring, but the
transmitting on that call is still prohibited.
The radio also displays any incoming SDS messages to the user. The missed call feature is active in
the transmit inhibit mode and allows checking what calls were missed. However, the radio attempts to
prevent call setup retransmission from being recorded as separate calls.
If you initiate an emergency call, the radio immediately leaves transmit inhibit mode and attempts to
start the emergency call if the radio is in service.
If the radio is turned off in the transmit inhibit mode, on turning on the radio asks whether to exit the
transmit inhibit mode. If you choose No, the radio turns off.
Emergency Operations
Emergency Operations are used in critical situations.
Pressing and holding the EMERGENCY button, or entering the Emergency Number and pressing the
SEND key, activates one or more services (depending on your service provider settings):
• Emergency Alarm
• SDS Status
• Silent Emergency
• Hot Microphone operation
• Emergency Individual Call (Private or MS-ISDN)
• GPS location information
NOTICE: It is possible to turn on the radio by pressing the EMERGENCY button. Depending on
the service provider settings, the radio can start Emergency Operations automatically. If the
radio is PIN-protected (except for SIM PIN), Emergency Operations will bypass the PIN lock for
the duration of the Emergency Operations.
When starting Emergency Operations, any ongoing voice call is aborted or cleared down, and any
packet data transfer in progress is aborted. However, the session is kept open.
During Emergency Operations, the radio rejects phone, PABX, and private calls, and does not monitor
the talkgroups in the selected scan list.
To terminate Emergency Operations, press the upperSOFT key.
Emergency Group Call
The Emergency Group Call has the highest communication priority that means it is the pre-emptive
kind of call. Emergency Group Call is available in both TMO and DMO. During Emergency Operations,
Emergency Group Call can be started by pressing pressing the EMERGENCY button. The radio can also
support Hot Microphone operation, which allows the Emergency Call to be conducted without pressing
the PTT button.
If the radio receives an incoming group call with emergency priority, the display shows that an
emergency call has been received, and a special audio alert is played.
An emergency group call can be configured as:
• A non-tactical call – initiated on a talkgroup preprogrammed by your service provider. When in non-
tactical emergency mode, you cannot switch talkgroups.
• A tactical call – initiated on the currently selected talkgroup.
In TMO, if the radio enters Emergency Operations while the Emergency Broadcast Call is active, the
radio continues on the call without initiating any calls and sends the Emergency Alarm.
Chapter 3: Modes
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