User Manual

Chapter 6
Features
Private Call
The Private Call, also called point-to-point, or individual call, enables calling between two individuals.
No other radio can hear the conversation. This call type can be carried out in two ways:
• Duplex call (if the system allows), in TMO Mode. Both parties can speak at the same time.
• Simplex call, in TMO or DMO Mode. Only one party can speak at a time.
When a DMO Private Call takes place, radios not involved in this call receive the channel busy
indication. The radios are identified using its radio numbers.
Related Links
Emergency Individual Calls (Private or MS-ISDN) on page 58
MS-ISDN on page 119
Making Private Calls
Procedure:
1 From the home screen, enter a number.
2 If Private is not the first type of call presented, press Ctype repeatedly to select it.
3 When you are in the following mode:
a TMO — For simplex calls, press and release the PTT button. You hear a ringing tone.
Otherwise, press and hold the PTT button. Wait for the talk permit tone before talking, and
release the PTT button to listen. For duplex calls, press and release the SEND key. You hear
a ringing tone.
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.
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
Features
Send Feedback 117