Hytera PT350 - 8.15.1 Overspeed Alarm; 8.15.2 Txl; 8.15.3 Covert Mode

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talk right in turn.
In an emergency call, after the transmitting duration of one party reaches the duration limit set for Emergency Cycle,
the party automatically enters into the receiving status. In this case, the other party can press the PTT key to speak.
The situation repeats until the cycle times expire.
In Emergency Cycle, the calling party can also press the PTT key in the receiving status to gain the talk right.
After the talk right is gained, Emergency Cycle ends.
8.14.6 Emergency Status Message
In TMO, the Emergency Status Message feature allows the terminal to send an emergency status code to an
individual contact, a group contact, and the default group.
8.15 Security
8.15.1 Overspeed Alarm
The Overspeed Alarm feature allows the terminal to give audio or visual indications when it moves at a speed faster
than the preset threshold. When the terminal moves at a speed lower than the preset threshold, the terminal exits the
overspeed alarm.
This feature is configured by your dealer. To use the feature, the terminal needs to receive valid position data. When
the feature is triggered, the terminal also reports the alarm to the preset contact or the LDS.
8.15.2 TxI
The TxI feature prevents the terminal from transmitting voice and data. It applies to places with RF exposure limits
or potential security risks, such as in hospitals or on airplanes.
If the TxI feature is programmed, you can enable or disable it as follows:

On the home screen, press the Menu key, and then go to Settings > Function > TxI.

Press the preprogrammed shortcut key for TxI.
8.15.3 Covert Mode
The Covert Mode feature allows you to totally mute the terminal in some special situations. With the feature enabled,
the terminal disables all visible and audible indications, and the screen is black. However, the keys are still available.
If an audio accessory is connected, voice will be output through the accessory.
8.15.3.2 Enabling the Covert Mode Feature

On the home screen, press the Menu key, go to Settings > Function > VOX > Switch, and then select On.