b DMO — Only simplex calls are available. Press and hold the PTT button. Wait for the talk permit tone before
talking, and release the PTT button to listen.
4 To end the call, press the END key.
Note: If you are using the fist microphone or the telephone style handset, replace it firmly on it's clip or
holder when done.
Radio Messaging System (RMS)
The Radio Messaging System (RMS) feature enables radio to receive and send RMS messages through the TETRA
network using the Short Data Service.
There are two types of RMS messages:
• RMS Status – a predefined code that is sent bidirectionally between the radio and the service provider. The radio
can have up to ten statuses that are assigned to numeric keys from 0 to 9. The latest received or sent RMS status is
kept on the home screen until the next power cycle. A received RMS status is displayed in blue color font on the
home screen.
RMS Free Text – a unidirectional message containing free text that is sent to the radio by the service provider.
Since this type of message is longer, the radio displays only its beginning on the home screen and to read its
remaining part, you need to go to Menu → Messages → RMS Box. The latest RMS free text is kept on the home
screen until the next power cycle.
RMS free text messages and incoming and outgoing RMS statuses (with the exception of RMS statuses sent) are
stored in the RMS Box. Its capacity is maximum ten entries for incoming and outgoing RMS messages. If the RMS
Box is full, any new incoming or outgoing RMS message overwrites the oldest message (received or sent).
The radio receives and sends RMS messages only from and to the numbers predefined by your service provider.
Note: This is a selling feature.
RMS Icons
Table 18: RMS Icons
Icon Description
RMS Status Received
Indicates a new RMS status message just arrived.
RMS Status Sent
RMS Box Read Message
RMS Box Unread Message
Sending an RMS Status
Prerequisites: Your service provider enabled this feature and the radio is in the RMS mode.
90 | Features
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