Funkwerk FT4 Operating Manual page 66

62 TETRA basics
TETRA connection types
Trunking mode (TMO)
The trunking mode is a connection type for which all terminal units use a common
TETRA infrastructure. All terminal units that can be reached are registered on the
TETRA network.
Description
In trunking mode, your radio set sets up all connections from or to other users and
other applications through the TETRA infrastructure.
TMO TMO
uplink uplink
downlink
downlink downlink
uplink
PABX
PSTN
Application
Trunking mode (TMO): Schematic representation of possible calls and connections
In trunking mode, voice and data calls can be made simultaneously.