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Mobility procedures that do not require the radio to send an uplink transmission are performed except for cell
reselection.
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.
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.
DMO Gateway and Repeater Communication
The radio provides the capability of communicating in DMO mode with a TMO group via the IOP certified gateways.
A DMO repeater re-transmits information received from one DMO radio to other DMO radios over the DMO air
interface.
For each DMO talkgroup, the radio allows operating in one of the following modes:
Radio to radio only
The radio initiates calls only on a talkgroup directly and not through a gateway or repeater.
Specific gateway
The radio can initiate calls on a talkgroup directly or through a specific gateway address that is specified for a
talkgroup. The gateway address can be edited through the radio MMI.
Auto gateway
The radio can initiate calls on the selected talkgroup directly with another radio or through any available gateway
that is detected as present.
Repeater
The talkgroup links to a DMO repeater.
Specific gateway and repeater
The radio uses only the gateway with the specified gateway address for the talkgroup and/or a DMO repeater.
Automatic gateway and repeater
The radio uses the first available gateway for a talkgroup and/or a DMO repeater. If either specific gateway or auto
gateway mode is chosen, and a suitable gateway is found, all outgoing calls are placed through the gateway. If a
suitable gateway is not found, or a call setup through the gateway fails, the radio attempts to set up the call directly.
Communication through Repeaters
Radios that are out of range and cannot communicate directly one with another in DMO Mode can do it through the
repeater. The repeater is a radio that repeats all communication on a chosen channel, and as a result increases radios'
DMO range.
Services and Features | 45
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